Claude Opus 4 API Pricing: Legacy Frontier Economics and Migration Guide
Comprehensive Claude Opus 4 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 cost per million tokens?
Claude Opus 4 costs $15.00 per million input tokens and $75.00 per million output tokens ($30.00/M blended at 3:1). A pioneering deep reasoning model with exceptional nuance, currently carrying a 3x premium over Opus 4.7 ($5/$25). Verified 2026-09-08.
How much does Claude Opus 4 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.
Volume ladder, output-cost sensitivity, and migration ledger for Claude Opus 4
1. Fixed-shape monthly cost ladder
| Workload | Input / output tokens | 100K requests | 1M requests | 10M requests |
|---|---|---|---|---|
| Short chat | 500 / 150 | $1875.00 | $18750.00 | $187500.00 |
| Code review | 4,000 / 800 | $12000.00 | $120000.00 | $1200000.00 |
| Document summary | 16,000 / 2,000 | $39000.00 | $390000.00 | $3900000.00 |
Cost = requests × (input tokens × $15.00/M + output tokens × $75.00/M) ÷ 1,000,000, at three fixed text-token workload shapes. No volume discount, cache, or batch rate is inferred — Claude Opus 4's registry entry does not price those tiers.
2. Output-token cost-sensitivity band
| Workload | Input cost (1 request) | Output cost (1 request) | Output share of spend |
|---|---|---|---|
| Short chat | $0.0075 | $0.01 | 60.0% |
| Code review | $0.06 | $0.06 | 50.0% |
| Document summary | $0.24 | $0.15 | 38.5% |
Output share = output-token spend ÷ (input-token spend + output-token spend) for a single request at each shape. Across these three shapes, Claude Opus 4's output share spans 38.5% to 60.0% — a 21.5%-point swing driven entirely by workload shape, not by any change in the $15.00/$75.00 per-1M rates.
3. Successor rate delta and lifecycle ledger
| Rate | Claude Opus 4 | Claude Opus 4.8 | Delta ($ / %) |
|---|---|---|---|
| Input $/M | $15.00 | $5.00 | $-10.0000 (-66.7%) |
| Output $/M | $75.00 | $25.00 | $-50.0000 (-66.7%) |
Delta = successor rate − Claude Opus 4 rate, both taken from the current dated pricing registry. Cache, batch, and context-tier pricing are not substituted across models; each figure is model-specific or marked Unavailable.
| Field | Recorded value | Note |
|---|---|---|
| Lifecycle status | legacy | Verified 2026-08-14 |
| Deprecation announced | Unavailable | No inference beyond the dated record |
| Shutdown date | Unavailable | Null/unavailable is not a promise of indefinite availability |
| Successor | Claude Opus 4.8 | claude-opus-4-8 priced in this registry |
| Context window | 200K tokens | Verified 2026-08-14 |
Price verified 2026-04-06; lifecycle verified 2026-08-14. Luna is the data owner. "Unavailable" means no compatible dated evidence was found for that field; it is never treated as zero. Dated price source · lifecycle source · Test Claude Opus 4 in All AI Ask.
claude-opus-4Claude Opus 4 API Pricing: Legacy Frontier Economics and Migration Guide
Claude Opus 4 costs $15.00 per million input tokens and $75.00 per million output tokens ($30.00/M blended at 3:1). A pioneering deep reasoning model with exceptional nuance, currently carrying a 3x premium over Opus 4.7 ($5/$25). Verified 2026-09-08.
Claude Opus 4 remains operational but costs significantly more than current-generation alternatives.
| 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 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 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 |
| Scenario 2 | Sonnet 4.6 outperforms Opus 4 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 |
| 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?
How much does Claude Opus 4 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 compare with other models?
What is Claude Opus 4 best for?
What should you explore next for Claude Opus 4?
Which Claude Opus 4 head-to-head comparisons are available?
What are common questions about Claude Opus 4?
Is Claude Opus 4 cheaper than Claude Opus 5?
Claude Opus 4 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?
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 cost at high volume?
At 100 million blended tokens a month, Claude Opus 4 costs approximately $3000.00. See the cost-at-scale table below for other volumes.