Claude Opus 4.1 API pricing
As of October 22, 2026, Anthropic Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens, the median of 1 providers on OpenRouter, with cached input at $1.50 per million.
Claude Opus 4.1 benchmarks and specs · Every Anthropic model's price
- Input, per million tokens$15.00
- Output, per million tokens$75.00
- Cached input, per million$1.50
- Context window200K tokens
- Max output32K tokens
- Output speedNot measured
What a request costs
Three fixed token mixes at the list price, without cache or batch discounts. For a whole month, use the calculator.
| Workload | Tokens | One request | 1,000 requests | Fits the context window |
|---|---|---|---|---|
| Chat turn | 1K input + 500 output tokens | $0.052 | $52.50 | Yes |
| Repository review | 50K input + 3K output tokens | $0.975 | $975.00 | Yes |
| Agent loop | 200K input + 10K output tokens | $3.75 | $3750.00 | No, it would need splitting |
| Solved coding task | One SWE-bench Verified attempt, divided by the share that succeed | Not computable | Not computable |
Price history
The price of Claude Opus 4.1 here is the median across 1 providers on OpenRouter, so we do not track price changes for it.
Cheaper models as good as Claude Opus 4.1
Models within two points of Claude Opus 4.1 or above it on the LLMBenchmark Index, with a lower output price. Cheapest first.
- Qwen3.5-Flash$0.26 Overall 50.1 against 50.2 · 100% cheaper output
- MiMo-V2.6-Flash$0.28 Overall 60.8 against 50.2 · 100% cheaper output
- MiMo-V2.5$0.336 Overall 50.7 against 50.2 · 100% cheaper output
- DeepSeek V4 Flash 0731$0.396 Overall 55.2 against 50.2 · 99% cheaper output
- Claude Haiku 5.5$0.50 Overall 67.6 against 50.2 · 99% cheaper output
Claude Opus 4.1 pricing questions
- How much does Claude Opus 4.1 cost per million tokens?
- $15.00 per million input tokens and $75.00 per million output tokens, as listed on OpenRouter on October 22, 2026.
- Does Claude Opus 4.1 support prompt caching?
- Yes. OpenRouter lists cached input at $1.50 per million tokens, against $15.00 for uncached input.
- Is there a cheaper model as good as Claude Opus 4.1?
- Qwen3.5-Flash scores 50.1 on the LLMBenchmark Index, within two points of Claude Opus 4.1 or above it, and costs $0.26 per million output tokens.
- Has the price of Claude Opus 4.1 changed?
- The price of Claude Opus 4.1 here is the median across 1 providers on OpenRouter, so we do not track price changes for it.