GLM-5.2 Alternatives
Decision and evidence surface verified 2026-08-14.
What is the best alternative to GLM-5.2?
The closest alternative to GLM-5.2 (Z.ai, $2.15/M blended) is Grok 4.3, from xAI, a config migration priced -27.3% relative to GLM-5.2 at blended (3:1) rates. There is no meaningful parity loss on this swap.
The closest match to GLM-5.2 (Z.ai, $2.15/M) is Grok 4.3 — a config migration at -27.3% price.
Ranked — top 8 alternatives
| # | Model | Provider | Effort | Blended $/M (Δ%) | tok/s (Δ%) | Context | Parity | Closeness |
|---|---|---|---|---|---|---|---|---|
| 1 | Grok 4.3 | xAI | config | $1.56 (-27.3%) | — | 0K | 100% | 93 |
| 2 | Grok-4.20 Reasoning | xAI | config | $3.00 (+39.5%) | — | 0K | 100% | 92 |
| 3 | Muse Spark 1.3 Contributor | Meta | config | $0.13 (-94.2%) | — | +49K | 75% | 83 |
| 4 | Gemini 3.5 Flash Lite | code-change | $0.85 (-60.5%) | — | 0K | 100% | 83 | |
| 5 | Gemini 3.7 Flash | code-change | $1.50 (-30.2%) | — | +49K | 100% | 82 | |
| 6 | Muse Spark 1.3 | Meta | config | $2.00 (-7%) | — | +49K | 75% | 82 |
| 7 | Grok 4.6 | xAI | config | $3.00 (+39.5%) | — | -500K | 75% | 81 |
| 8 | Grok 4.5 | xAI | config | $3.00 (+39.5%) | — | -500K | 75% | 81 |
Top 3, in detail
Keep the `openai` SDK; change `baseURL` and the API key.
base_url: https://api.z.ai/api/paas/v4 auth: Bearer API key
base_url: https://api.x.ai/v1 auth: Bearer API key sdk: openai model: "grok-4.3"
Keep the `openai` SDK; change `baseURL` and the API key.
base_url: https://api.z.ai/api/paas/v4 auth: Bearer API key
base_url: https://api.x.ai/v1 auth: Bearer API key sdk: openai model: "grok-4.20-0309-reasoning"
Keep the `openai` SDK; change `baseURL` and the API key.
You lose: Loses the free tier.
You gain: Context grows from 1,000,000 to 1,048,576 tokens; Max output grows from 64,000 to 128,000 tokens.
base_url: https://api.z.ai/api/paas/v4 auth: Bearer API key
base_url: https://api.meta.ai/v1 auth: Bearer API key sdk: openai model: "muse-spark-1.3-contributor"
Or don't migrate at all
One base URL, one key, change the model string — every alternative above is already callable through All AI Ask.
curl https://allaiask.com/api/v1/chat \
-H "Authorization: Bearer $ALLAIASK_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model": "grok-4.3", "messages": [{"role": "user", "content": "Hello"}]}'Related
FAQ
Batch 46 evidence surface · verified 2026-08-14 · frozen route allowlist: /alternatives/glm-5-2
GLM host identity, coding checkpoints, and artifact-drift promotion
Batch 46 · M1: GLM host-artifact-runtime matrix
Formula / rule: eligible = complete provider/host/model/revision/artifact/license/template/precision/runtime identity with admitted context and tools.
Dated provenance: Frozen Batch 46 glm-5-2 fixture; official/alternate hosts, full precision, quantizations, runtimes, and foreign target; surface verification date 2026-08-14.
First-party citation: Z.ai GLM documentation
| Field ID / fixture | Inputs | Observation / calculation | Decision boundary | State |
|---|---|---|---|---|
batch46-glm-5-2-m1-r1official hosted endpoint + alternate hosted endpoint | provider; host; model; revision; context; tools; usage | Official endpoint identity joins; alternate host omits revision and usage fields. | Hosted response similarity cannot close identity gaps. | UNAVAILABLE — alternate host rejected. |
batch46-glm-5-2-m1-r2pinned full precision + two named quantizations | artifact hashes; license revision; tokenizer/template; precision; runtime | Full precision identity joins; quantization-1 license revision and quantization-2 template are missing. | Neither quantization is identity-complete. | UNAVAILABLE — artifact fields missing. |
batch46-glm-5-2-m1-r3two runtimes + foreign-model target | runtime IDs; context admission; tool support; artifact; revision; owner | Runtime A admits context and tools; Runtime B tokenizer is unjoined; foreign target changes tool schema. | Only the complete runtime path is eligible. | PASS WITH SCOPE — Runtime A only. |
Batch 46 · M2: Long-horizon coding checkpoint ledger
Formula / rule: checkpoint pass = joined checkpoint/prompt/repository/tool/artifact/effect IDs + retained state + reviewer result.
Dated provenance: Frozen Batch 46 glm-5-2 fixture; scan, 10-file plan, patch, test failure, retry, review, compaction, cancellation, and resume; surface verification date 2026-08-14.
First-party citation: Z.ai GLM documentation
| Field ID / fixture | Inputs | Observation / calculation | Decision boundary | State |
|---|---|---|---|---|
batch46-glm-5-2-m2-r1repository scan + 10-file plan + three-file patch | checkpoint; prompt/repository hashes; changed files; tool IDs; artifact | Scan and patch hashes join; ten-file plan drops one dependency note during compaction. | Dropped planning state must be manually restored. | PASS WITH REPAIR — dependency note restored. |
batch46-glm-5-2-m2-r2test failure + retry + parallel review | test result; retry ID; reviewer IDs; event order; duplicate action | Retry preserves failure; parallel review duplicates one formatting edit. | Duplicate edits remain a trajectory defect. | FAIL — manual repair required. |
batch46-glm-5-2-m2-r3cancellation + resume | cancel event; checkpoint; resumed hash; side-effect ID; reviewer | Resumed hash joins; cancelled tool event and side-effect ID are absent. | Resume cannot be promoted with an incomplete effect trail. | UNAVAILABLE — recovery identity missing. |
Batch 46 · M3: Artifact-drift promotion board
Formula / rule: promote only when every critical fixture passes and severity-weighted drift has no unexplained identity field.
Dated provenance: Frozen Batch 46 glm-5-2 fixture; 12 bug fixes, 9 refactors, and 9 tool-agent fixtures across hosts/artifacts/runtimes; surface verification date 2026-08-14.
First-party citation: Z.ai GLM documentation
| Field ID / fixture | Inputs | Observation / calculation | Decision boundary | State |
|---|---|---|---|---|
batch46-glm-5-2-m3-r112 bug fixes · hosted reference | fixture hashes; template; controls; critical pass rate; retries | 11/12 pass; one critical fix has an unexplained retry. | Aggregate pass rate cannot conceal a critical unknown. | FAIL — hosted promotion held. |
batch46-glm-5-2-m3-r29 refactors · qualified artifact/runtime | artifact/runtime; reviewer minutes; drift severity; unexplained failures | 9/9 pass with 0.18 weighted drift; reviewer minutes are joined. | Drift is scoped to this exact artifact/runtime. | PASS WITH REPAIR — monitor drift. |
batch46-glm-5-2-m3-r39 tool-agent fixtures · all qualified paths | tool/event hashes; critical pass rate; identity fields; rollback owner | 8/9 pass; one runtime has unknown template identity and one duplicate action. | Any critical fixture or identity unknown blocks promotion. | UNAVAILABLE — promotion blocked. |
Fail-closed rule: unresolved host, endpoint, artifact, modality, control, citation, workload, acceptance, or accounting joins remain Unavailable; no neighboring route supplies them.
Run the glm-5-2 evidence canary →What is the closest alternative to GLM-5.2?
Grok 4.3 is the closest match: config migration, -27.3% price, no significant parity loss.
Can I switch off GLM-5.2 without changing my code?
Only if you stay on Z.ai. Every cross-provider option requires at least a config change (new base URL and key); some need a code change or a full rewrite — see the effort column below.
What do I lose switching from GLM-5.2?
Against the closest match, Grok 4.3, we found no significant parity gap on the dimensions we track.
Prices and specs verified 2026-08-14.