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Compare DeepSeek V4 Pro and Grok 4.5: Deep Reasoning vs 2M Coding Tool Loops

DeepSeek V4 Pro vs Grok 4.5: which should I use?

DeepSeek V4 Pro delivers premier mathematical reasoning with built-in thinking mode and off-peak discounts, while Grok 4.5 offers 2M token context, deep software engineering tool loops, and real-time live data access. Verified 2026-09-07.

Verified 2026-09-07

Which tasks fit DeepSeek V4 Pro and Grok 4.5?

Best-fit task signals from the published model strengths; this is not a substitute for a controlled benchmark.

FactDeepSeek V4 ProGrok 4.5
Best fitRigorous math, proofs, and hard algorithmic problems on a budget.Agentic software engineering and workflow automation that need strong coding capability at a competitive price.
Reasoning modeAvailableAvailable

What does a Coding Agent workload cost with DeepSeek V4 Pro and Grok 4.5?

Modeled for Coding Agent: 20,000 input + 2,000 output tokens per task, 1 turn. This is a workload model, not a provider quote.

FactDeepSeek V4 ProGrok 4.5
Coding Agent / task$0.03 (modeled) (winner)$0.05 (modeled)
Input / output rate$1.32 / $3.96 per M$2.00 / $6.00 per M

How fast are DeepSeek V4 Pro and Grok 4.5?

Only non-estimated benchmark results are shown as measured.

FactDeepSeek V4 ProGrok 4.5
Measured throughput68 tokens/sUnavailable
Time to first token480 msUnavailable

How compatible are DeepSeek V4 Pro and Grok 4.5 with APIs?

Provider-level wire-format and SDK facts; model-specific parameter differences may still apply.

FactDeepSeek V4 ProGrok 4.5
OpenAI SDKUsableUsable
Request shapeOpenAI-compatible chat/completions; set model to a deepseek-* id and point base_url at api.deepseek.com.Full OpenAI chat/completions compatibility — point the openai SDK at api.x.ai and it works unmodified.
StreamingSSE (OpenAI delta)SSE (OpenAI delta)

What are the privacy and retention policies for DeepSeek V4 Pro and Grok 4.5?

Provider policy and residency facts from the verified provider registry. A missing retention policy is not treated as a guarantee.

FactDeepSeek V4 ProGrok 4.5
Provider says API data trains modelsUnavailableUnavailable
Published retention periodUnavailableUnavailable
Data residencyUnavailableUnavailable

How much effort does it take to migrate between DeepSeek V4 Pro and Grok 4.5?

Direction is from each displayed model to the other. Effort is derived from provider compatibility and published parameter maps.

FactDeepSeek V4 ProGrok 4.5
Move DeepSeek V4 Pro → Grok 4.5config; 0 breaking parameter differencesTarget: Grok 4.5
Move Grok 4.5 → DeepSeek V4 ProSource: Grok 4.5config; 5 breaking parameter differences
WhyKeep the `openai` SDK; change `baseURL` and the API key.Keep the `openai` SDK; change `baseURL` and the API key.

Batch 56 · exact-pair decision contributions. Surface verification: 2026-09-02. Exactly three boards are server-rendered from frozen scenario fixtures; assumptions and unavailable joins are not observations.

Exact pair boundary: DeepSeek / xAI; account/host/request/effective-model IDs, usage fields, invoice period, accepted work, and rate owner must join. Requested models are deepseek-v4-pro and grok-4.5. Provider, rate, pricing, and task pages remain fact owners.

DeepSeek/Grok usage-record normalization compiler

Frozen Batch 56 scenario board. Formula / deterministic rule: normalize = documented raw input/output/cache/reasoning/tool fields + account/host/request IDs; missing field => Unreconciled Boundary: Owns exact-pair usage-record normalization; undocumented fields are never synthesized.

Frozen scenario / field IDPair, identity, host, surface, and evidence fieldsResultState
batch56-deepseek-v4-pro-vs-grok-4-5-m1-r1
successful response
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=successful response; account/host/request/effective-model IDs; timestamp/rate period; raw usage fields; normalized unit or Unreconciled; source/date; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — successful response is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m1-r2
cached-input response
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=cached-input response; account/host/request/effective-model IDs; timestamp/rate period; raw usage fields; normalized unit or Unreconciled; source/date; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — cached-input response is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m1-r3
tool-call turn
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=tool-call turn; account/host/request/effective-model IDs; timestamp/rate period; raw usage fields; normalized unit or Unreconciled; source/date; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — tool-call turn is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m1-r4
streamed response
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=streamed response; account/host/request/effective-model IDs; timestamp/rate period; raw usage fields; normalized unit or Unreconciled; source/date; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — streamed response is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m1-r5
provider retry
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=provider retry; account/host/request/effective-model IDs; timestamp/rate period; raw usage fields; normalized unit or Unreconciled; source/date; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — provider retry is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m1-r6
missing usage field
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=missing usage field; account/host/request/effective-model IDs; timestamp/rate period; raw usage fields; normalized unit or Unreconciled; source/date; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — missing usage field has no matched, dated bilateral observation.FAIL CLOSED — manual, probe, or source evidence required

First-party provenance: DeepSeek API documentation; verification date 2026-09-02. Missing or conflicting joins fail closed.

Invoice-to-accepted-work reconciliation receipt

Frozen Batch 56 scenario board. Formula / deterministic rule: delta = billed total − calculated documented usage total; open period, duplicate, or unexplained delta => Unavailable Boundary: Owns closed-period billing reconciliation for this pair, not a prospective cheapest ranking.

Frozen scenario / field IDPair, identity, host, surface, and evidence fieldsResultState
batch56-deepseek-v4-pro-vs-grok-4-5-m2-r1
exact match
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=exact match; usage/invoice/work hashes; currency/tax boundary; exact rate owner; accepted denominator; calculated versus billed total; delta; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — exact match is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m2-r2
rounding delta
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=rounding delta; usage/invoice/work hashes; currency/tax boundary; exact rate owner; accepted denominator; calculated versus billed total; delta; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — rounding delta is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m2-r3
delayed line item
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=delayed line item; usage/invoice/work hashes; currency/tax boundary; exact rate owner; accepted denominator; calculated versus billed total; delta; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — delayed line item is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m2-r4
gateway markup
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=gateway markup; usage/invoice/work hashes; currency/tax boundary; exact rate owner; accepted denominator; calculated versus billed total; delta; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — gateway markup is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m2-r5
duplicate charge
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=duplicate charge; usage/invoice/work hashes; currency/tax boundary; exact rate owner; accepted denominator; calculated versus billed total; delta; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — duplicate charge is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m2-r6
missing invoice
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=missing invoice; usage/invoice/work hashes; currency/tax boundary; exact rate owner; accepted denominator; calculated versus billed total; delta; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — missing invoice has no matched, dated bilateral observation.FAIL CLOSED — manual, probe, or source evidence required

First-party provenance: xAI API pricing documentation; verification date 2026-09-02. Missing or conflicting joins fail closed.

Throttle-aware queue and spend board

Frozen Batch 56 scenario board. Formula / deterministic rule: route = queue age + observed/assumed arrival/service/error inputs + side-effect class + spend cap; unresolved retry storm => hold Boundary: Owns throttle-aware scheduling after reconciliation; provider-wide quota claims remain with rate-limit owners.

Frozen scenario / field IDPair, identity, host, surface, and evidence fieldsResultState
batch56-deepseek-v4-pro-vs-grok-4-5-m3-r1
steady flow
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=steady flow; observed versus assumed queue inputs; idempotency/side-effect class; spend cap; route/defer/hold outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — steady flow is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m3-r2
DeepSeek throttle
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=DeepSeek throttle; observed versus assumed queue inputs; idempotency/side-effect class; spend cap; route/defer/hold outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — DeepSeek throttle is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m3-r3
Grok throttle
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=Grok throttle; observed versus assumed queue inputs; idempotency/side-effect class; spend cap; route/defer/hold outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — Grok throttle is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m3-r4
dual throttle
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=dual throttle; observed versus assumed queue inputs; idempotency/side-effect class; spend cap; route/defer/hold outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — dual throttle is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m3-r5
retry storm
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=retry storm; observed versus assumed queue inputs; idempotency/side-effect class; spend cap; route/defer/hold outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — retry storm is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch56-deepseek-v4-pro-vs-grok-4-5-m3-r6
daily-budget exhaustion
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com or declared gateway; hostB=api.x.ai or declared gateway; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=daily-budget exhaustion; observed versus assumed queue inputs; idempotency/side-effect class; spend cap; route/defer/hold outcome; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-02; measurement versus assumption=explicitUnavailable — daily-budget exhaustion has no matched, dated bilateral observation.FAIL CLOSED — manual, probe, or source evidence required

First-party provenance: xAI API documentation; verification date 2026-09-02. Missing or conflicting joins fail closed.

Method and limitations: formulas are deterministic; observed and assumed inputs are labeled; no missing provider, host, account, region, realm, alias, snapshot, revision, weight, artifact, control, tool, modality, workload, rate-period, timestamp, or result is transferred. Run the deepseek-v4-pro-vs-grok-4-5 Batch 56 scenario →

Batch 64 · exact-pair decision contributions · verified 2026-09-07

Exact pair boundary: DeepSeek / xAI; model endpoint, 1M vs 2M context scale, open-weights thinking mode vs coding tool loop flagship, and pricing must join. Requested models are deepseek-v4-pro and grok-4.5. Provider, rate, pricing, and task pages remain fact owners.

Token pricing and off-peak schedule economic model

Frozen Batch 64 scenario board. Formula / deterministic rule: monthly_spend = peak_calls * rate_peak + off_peak_calls * rate_off_peak Boundary: Owns pricing differential modeling accounting for DeepSeek off-peak discounts.

Frozen scenario / field IDPair, identity, host, surface, and evidence fieldsResultState
batch64-deepseek-v4-pro-vs-grok-4-5-m1-r1
peak business hours query load (UTC 00:30-16:30)
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=peak business hours query load (UTC 00:30-16:30); workload timing; DeepSeek spend; Grok 4.5 spend; cost difference; off-peak savings; financial winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — peak business hours query load (UTC 00:30-16:30) is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m1-r2
off-peak discounted batch load (UTC 16:30-00:30)
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=off-peak discounted batch load (UTC 16:30-00:30); workload timing; DeepSeek spend; Grok 4.5 spend; cost difference; off-peak savings; financial winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — off-peak discounted batch load (UTC 16:30-00:30) is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m1-r3
50% prompt caching hit rate
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=50% prompt caching hit rate; workload timing; DeepSeek spend; Grok 4.5 spend; cost difference; off-peak savings; financial winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — 50% prompt caching hit rate is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m1-r4
repository-scale document extraction
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=repository-scale document extraction; workload timing; DeepSeek spend; Grok 4.5 spend; cost difference; off-peak savings; financial winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — repository-scale document extraction is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m1-r5
rate limit quota saturation
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=rate limit quota saturation; workload timing; DeepSeek spend; Grok 4.5 spend; cost difference; off-peak savings; financial winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — rate limit quota saturation is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m1-r6
unresolved billing currency conversion
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=unresolved billing currency conversion; workload timing; DeepSeek spend; Grok 4.5 spend; cost difference; off-peak savings; financial winner; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — unresolved billing currency conversion has no matched, dated bilateral observation.FAIL CLOSED — manual, probe, or source evidence required

First-party provenance: DeepSeek API pricing; verification date 2026-09-07. Missing or conflicting joins fail closed.

Context window scaling (1M vs 2M) capability gate

Frozen Batch 64 scenario board. Formula / deterministic rule: eligible = (context <= 1M ? Both : (context <= 2M ? Grok : Excluded)) Boundary: Owns context scaling and capability gating for large repositories.

Frozen scenario / field IDPair, identity, host, surface, and evidence fieldsResultState
batch64-deepseek-v4-pro-vs-grok-4-5-m2-r1
small library codebase (50K tokens)
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=small library codebase (50K tokens); context size; DeepSeek eligible; Grok 4.5 eligible; DeepSeek cost; Grok cost; context gating verdict; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — small library codebase (50K tokens) is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m2-r2
medium application service (250K tokens)
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=medium application service (250K tokens); context size; DeepSeek eligible; Grok 4.5 eligible; DeepSeek cost; Grok cost; context gating verdict; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — medium application service (250K tokens) is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m2-r3
large monolithic codebase (1M boundary)
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=large monolithic codebase (1M boundary); context size; DeepSeek eligible; Grok 4.5 eligible; DeepSeek cost; Grok cost; context gating verdict; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — large monolithic codebase (1M boundary) is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m2-r4
massive enterprise monorepo (1.5M tokens)
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=massive enterprise monorepo (1.5M tokens); context size; DeepSeek eligible; Grok 4.5 eligible; DeepSeek cost; Grok cost; context gating verdict; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — massive enterprise monorepo (1.5M tokens) is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m2-r5
2M full context saturation test
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=2M full context saturation test; context size; DeepSeek eligible; Grok 4.5 eligible; DeepSeek cost; Grok cost; context gating verdict; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — 2M full context saturation test is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m2-r6
unsupported archive payload format
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=unsupported archive payload format; context size; DeepSeek eligible; Grok 4.5 eligible; DeepSeek cost; Grok cost; context gating verdict; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — unsupported archive payload format has no matched, dated bilateral observation.FAIL CLOSED — manual, probe, or source evidence required

First-party provenance: xAI Grok documentation; verification date 2026-09-07. Missing or conflicting joins fail closed.

Coding agent iterative tool loop token burn ledger

Frozen Batch 64 scenario board. Formula / deterministic rule: session_cost = sum_loops((cumulative_prompt * rate_in + tool_call_out * rate_out) / 1M) Boundary: Owns multi-step coding agent loop cost modeling.

Frozen scenario / field IDPair, identity, host, surface, and evidence fieldsResultState
batch64-deepseek-v4-pro-vs-grok-4-5-m3-r1
3-step function execution loop
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=3-step function execution loop; agent loop depth; cumulative input tokens; emitted tool tokens; DeepSeek spend; Grok 4.5 spend; cost ratio; agent status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — 3-step function execution loop is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m3-r2
10-step autonomous bug hunting
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=10-step autonomous bug hunting; agent loop depth; cumulative input tokens; emitted tool tokens; DeepSeek spend; Grok 4.5 spend; cost ratio; agent status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — 10-step autonomous bug hunting is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m3-r3
25-step full PR generation loop
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=25-step full PR generation loop; agent loop depth; cumulative input tokens; emitted tool tokens; DeepSeek spend; Grok 4.5 spend; cost ratio; agent status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — 25-step full PR generation loop is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m3-r4
50-step multi-file architectural refactor
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=50-step multi-file architectural refactor; agent loop depth; cumulative input tokens; emitted tool tokens; DeepSeek spend; Grok 4.5 spend; cost ratio; agent status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — 50-step multi-file architectural refactor is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m3-r5
infinite loop circuit breaker trigger
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=infinite loop circuit breaker trigger; agent loop depth; cumulative input tokens; emitted tool tokens; DeepSeek spend; Grok 4.5 spend; cost ratio; agent status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — infinite loop circuit breaker trigger is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict
batch64-deepseek-v4-pro-vs-grok-4-5-m3-r6
unhandled tool call syntax error
pair=deepseek-v4-pro vs grok-4.5; provider=DeepSeek / xAI; hostA=api.deepseek.com; hostB=api.x.ai; surfaceA=DeepSeek API; surfaceB=xAI API; requested/effective IDs=deepseek-v4-pro,grok-4.5; scenario=unhandled tool call syntax error; agent loop depth; cumulative input tokens; emitted tool tokens; DeepSeek spend; Grok 4.5 spend; cost ratio; agent status; prompt/config/input/output/result/cache/checkpoint/artifact hashes=required; evidence=2026-09-07; measurement versus assumption=explicitUnavailable — unhandled tool call syntax error is a frozen fixture pending exact identity, configuration, and denominator joins.UNTESTED — assumption cannot establish a verdict

First-party provenance: xAI API pricing documentation; verification date 2026-09-07. Missing or conflicting joins fail closed.

Method and limitations: formulas are deterministic; observed and assumed inputs are labeled; no missing provider, host, account, region, realm, alias, snapshot, revision, weight, artifact, control, tool, modality, workload, rate-period, timestamp, or result is transferred. Run the deepseek-v4-pro-vs-grok-4-5 Batch 64 scenario →

How do DeepSeek V4 Pro and Grok 4.5 compare on specs?

DeepSeek V4 ProGrok 4.5
Price (input)$1.32/M$2.00/M
Price (output)$3.96/M$6.00/M
Blended price$1.98/M$3.00/M
Context window1,000,000 tokens500,000 tokens
Max output384,000 tokens64,000 tokens
Modalitiestexttext, vision
Reasoning modeYesYes
Released2026-052026-07
Speed68 t/sNot measured

How much do DeepSeek V4 Pro and Grok 4.5 cost at scale?

Tokens / monthDeepSeek V4 ProGrok 4.5Delta
1,000,000$1.98$3.00$1.02 (1.5×)
10,000,000$19.80$30.00$10.20 (1.5×)
100,000,000$198.00$300.00$102.00 (1.5×)

Choose DeepSeek V4 Pro if…

  • Thinking mode with visible chain-of-thought
  • Frontier-level math and competition coding
  • Still far cheaper than closed frontier models
  • Rigorous math, proofs, and hard algorithmic problems on a budget.

Choose Grok 4.5 if…

  • xAI coding model for agents and engineering
  • Configurable reasoning for complex tasks
  • 500K-token context at $2/$6 per million tokens
  • Agentic software engineering and workflow automation that need strong coding capability at a competitive price.

Run this exact matchup right now

Send the same prompt to DeepSeek V4 Pro and Grok 4.5 side by side and see the outputs yourself.

Try DeepSeek V4 Pro vs Grok 4.5 Free

What are common questions about DeepSeek V4 Pro and Grok 4.5?

Is DeepSeek V4 Pro cheaper than Grok 4.5?

DeepSeek V4 Pro is cheaper, at $1.98 per million blended tokens vs $3.00 for Grok 4.5.

Which has the bigger context window, DeepSeek V4 Pro or Grok 4.5?

DeepSeek V4 Pro has the larger context window: 1,000,000 tokens vs 500,000.

Can DeepSeek V4 Pro replace Grok 4.5 for coding?

Both are viable for coding. Thinking mode with visible chain-of-thought (DeepSeek V4 Pro) vs xAI coding model for agents and engineering (Grok 4.5) — pick based on which strength matters more for your workload.

Neither of these? See DeepSeek V4 Pro alternatives or Grok 4.5 alternatives.

What related comparisons help choose between DeepSeek V4 Pro and Grok 4.5?

DeepSeek V4 Pro pricingGrok 4.5 pricingvs Claude Opus 4.8vs Claude Sonnet 5vs Gemini 3.1 Provs Gemini 3.7 FlashPremium model tests

Pricing verified 2026-08-14. Specs verified 2026-08-14.