Claude Opus 4.1 API Pricing: Legacy Rate Card and Migration Economics
Comprehensive Claude Opus 4.1 API pricing analysis ($15.00/M input, $75.00/M output), legacy enterprise maintenance costs, and migration savings to Opus 4.7.
How much does Claude Opus 4.1 cost per million tokens?
Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens ($30.00/M blended at 3:1). As a first-generation flagship model, it carries a 3x pricing premium over modern Opus 4.7 ($5/$25). Verified 2026-09-08.
How much does Claude Opus 4.1 cost per 1,000 requests?
Computed from generated token pricing. Each row assumes the listed input and output tokens per request; this model has no measured verbosity factor, so the unadjusted output estimate is shown.
| Request shape | Input tokens | Output tokens | Cost / 1,000 requests |
|---|---|---|---|
| Short | 100 | 50 | $5.2500 |
| Medium | 1,000 | 500 | $52.5000 |
| Long | 4,000 | 2,000 | $210.0000 |
Formula: ((input price × input tokens) + (output price × output tokens × verbosity factor)) ÷ 1,000,000 × 1,000. Assumptions: short 100/50, medium 1,000/500, long 4,000/2,000 input/output tokens per request. Unadjusted — no measured verbosity factor is available.
Batch 9 continuity economics for Claude Opus 4.1
1. Fixed legacy monthly workload bills
| Shape | Input / output | 100K calls | 1M calls | 10M calls |
|---|---|---|---|---|
| Analysis | 8,000 / 2,000 | $27000.00 | $270000.00 | $2700000.00 |
| Coding | 4,000 / 1,000 | $13500.00 | $135000.00 | $1350000.00 |
| Long-output | 4,000 / 4,000 | $36000.00 | $360000.00 | $3600000.00 |
Formula: calls × (input tokens × $15.00/M + output tokens × $75.00/M) ÷ 1,000,000. Vision spend is Unavailable because this page does not substitute an image unit price.
2. Traffic-drain budget (fallback, not successor)
| Drain | Claude Opus 4.1 baseline | Claude Haiku 4.5 fallback | Blended monthly | Savings |
|---|---|---|---|---|
| 0% | $135000.00 | $9000.00 | $135000.00 | $0.0000 |
| 25% | $135000.00 | $9000.00 | $103500.00 | $31500.00 |
| 50% | $135000.00 | $9000.00 | $72000.00 | $63000.00 |
| 100% | $135000.00 | $9000.00 | $9000.00 | $126000.00 |
The 1M-call coding-agent shape is held constant. Claude Haiku 4.5 is labelled only as a same-provider fallback; it is not a successor.
3. Continuity evidence ledger
| Field | Value | Evidence / boundary |
|---|---|---|
| successorId | claude-opus-4-8 | Verified 2026-08-14 |
| Lifecycle / shutdown | legacy | Unavailable |
| Price verified | 2026-04-06 | https://www.anthropic.com/pricing |
| Muse Spark gateway | Not applicable | |
| Required retest fields | quality, latency, context fit, compatibility | Measured evidence required before migration claim |
Successor rate audit
| Rate | Claude Opus 4.1 | Claude Opus 4.8 | Delta |
|---|---|---|---|
| Input $/M | $15.00 | $5.00 | $-10.0000 / -66.7% |
| Output $/M | $75.00 | $25.00 | $-50.0000 / -66.7% |
Legacy premium calculation: $15/M vs $5/M = 3.0× input and $75/M vs $25/M = 3.0× output versus Opus 4.6.
| Workload | Calls | Opus 4.1 bill | Opus 4.6 bill | Exact dollar savings | Savings |
|---|---|---|---|---|---|
| Analysis | 100,000 | $27000.00 | $9000.00 | $18000.00 | 66.7% |
| Analysis | 1,000,000 | $270000.00 | $90000.00 | $180000.00 | 66.7% |
| Analysis | 10,000,000 | $2700000.00 | $900000.00 | $1800000.00 | 66.7% |
| Coding | 100,000 | $13500.00 | $4500.00 | $9000.00 | 66.7% |
| Coding | 1,000,000 | $135000.00 | $45000.00 | $90000.00 | 66.7% |
| Coding | 10,000,000 | $1350000.00 | $450000.00 | $900000.00 | 66.7% |
| Long-output | 100,000 | $36000.00 | $12000.00 | $24000.00 | 66.7% |
| Long-output | 1,000,000 | $360000.00 | $120000.00 | $240000.00 | 66.7% |
| Long-output | 10,000,000 | $3600000.00 | $1200000.00 | $2400000.00 | 66.7% |
Accepted-result break-even calculation
| Workload | 4.1 / accepted result | 4.6 / accepted result | Break-even condition |
|---|---|---|---|
| Analysis | $0.27 | $0.09 | 4.1 wins when acceptance₄.₁ / acceptance₄.₆ > 3.00 |
| Coding | $0.14 | $0.04 | 4.1 wins when acceptance₄.₁ / acceptance₄.₆ > 3.00 |
| Long-output | $0.36 | $0.12 | 4.1 wins when acceptance₄.₁ / acceptance₄.₆ > 3.00 |
4.1 → 4.6 traffic-transfer savings
| Traffic transferred | 4.1 monthly bill | 4.6 monthly bill | Monthly dollar savings |
|---|---|---|---|
| 0% | $135000.00 | $0.0000 | $0.0000 |
| 25% | $101250.00 | $11250.00 | $22500.00 |
| 50% | $67500.00 | $22500.00 | $45000.00 |
| 100% | $0.0000 | $45000.00 | $90000.00 |
| Shape | Input spend | Output spend | Output share |
|---|---|---|---|
| Analysis | $0.12 | $0.15 | 55.6% |
| Coding | $0.06 | $0.07 | 55.6% |
| Long-output | $0.06 | $0.30 | 83.3% |
Verified 2026-04-06. Luna is the data owner. “Unavailable” means no compatible dated evidence was found; it is never treated as zero or an inferred successor. Dated price source · Run this evidence in All AI Ask.
claude-opus-4-1Claude Opus 4.1 API Pricing: Legacy Rate Card and Migration Economics
Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens ($30.00/M blended at 3:1). As a first-generation flagship model, it carries a 3x pricing premium over modern Opus 4.7 ($5/$25). Verified 2026-09-08.
Claude Opus 4.1 remains functional for legacy deployments but carries a 3x premium over newer models.
| Scenario | Rendered Evidence & Bounds |
|---|---|
| Scenario 1 | Standard legal contract review (20K in, 3K out): $0.52500 per document |
| Scenario 2 | Executive intelligence summary (16K in, 4K out): $0.54000 per briefing |
| Scenario 3 | Complex code architecture analysis (12K in, 2.5K out): $0.36750 per review |
| Scenario 4 | Medical research paper extraction (30K in, 3K out): $0.67500 per paper |
| Scenario 5 | Enterprise monthly legacy maintenance (10M blended tokens): $300.00 cost base |
| Scenario 6 | High-volume production run (50M blended tokens): $1,500.00 monthly baseline spend |
Migrating from Opus 4.1 to Opus 4.7 cuts infrastructure spend by two-thirds while upgrading reasoning.
| Scenario | Rendered Evidence & Bounds |
|---|---|
| Scenario 1 | 10M monthly token workload: saves $200.00/mo ($100.00 vs $300.00) immediately |
| Scenario 2 | 50M monthly token enterprise fleet: saves $1,000.00/mo ($500.00 vs $1,500.00) |
| Scenario 3 | 100M high-throughput pipeline: saves $2,000.00/mo with zero compromise in cognitive capability |
| Scenario 4 | Opus 4.7 delivers dramatically higher reasoning benchmarks alongside 3x lower pricing |
| Scenario 5 | Prompt compatibility: identical Claude prompt conventions ensure frictionless transition |
| Scenario 6 | Payback on migration engineering hours: realized within weeks of production cutover |
Sonnet 4.6 provides superior performance to Opus 4.1 at one-fifth the operational token price.
| Scenario | Rendered Evidence & Bounds |
|---|---|
| Scenario 1 | Sonnet 4.6 pricing ($3.00/M in, $15.00/M out): $6.00/M blended vs $30.00/M on Opus 4.1 |
| Scenario 2 | Sonnet 4.6 outperforms Opus 4.1 on coding, math, and instruction following benchmarks |
| Scenario 3 | Migrating 50M monthly tokens to Sonnet 4.6 saves $1,200.00/mo (80% net cost drop) |
| Scenario 4 | Massive 1M token context window available on Sonnet 4.6 vs 200K on Opus 4.1 |
| Scenario 5 | Ideal for automated customer support, document synthesis, and developer tooling |
| Scenario 6 | Recommended roadmap: test Sonnet 4.6 first; reserve Opus 4.7 for highest-ambiguity reasoning |
How fast is Claude Opus 4.1?
How much does Claude Opus 4.1 cost at scale?
| Tokens / month | Est. cost (blended 3:1) |
|---|---|
| 100,000 | $3.00 |
| 1,000,000 | $30.00 |
| 10,000,000 | $300.00 |
| 100,000,000 | $3000.00 |
How does Claude Opus 4.1 compare with other models?
What should you explore next for Claude Opus 4.1?
What are common questions about Claude Opus 4.1?
Is Claude Opus 4.1 cheaper than Claude Opus 5?
Claude Opus 4.1 costs $30.00/M blended tokens, Claude Opus 5 costs $30.00/M — Claude Opus 5 is cheaper.
How much does 1 million tokens cost with Claude Opus 4.1?
At a 3:1 input:output ratio, 1 million blended tokens costs approximately $30.00. Pure input costs $15.00/M; pure output costs $75.00/M.
What does Claude Opus 4.1 cost at high volume?
At 100 million blended tokens a month, Claude Opus 4.1 costs approximately $3000.00. See the cost-at-scale table below for other volumes.