Claude Opus 4.5 API Pricing
Anthropic · released Nov 24, 2025 · 200K context · API model ID claude-opus-4-5-20251101
Claude Opus 4.5 by Anthropic API pricing: $5.00 per 1M input tokens and $25.00 per 1M output tokens (verified against the official pricing page, Oct 9, 2026).
Prices
| Price | USD per 1M tokens |
|---|---|
| Input | $5.00 |
| Output | $25.00 |
| Cache read | $0.50 |
| Cache write | $6.25 |
| Batch input | $2.50 |
| Batch output | $12.50 |
Verified against the provider's official pricing page on Oct 9, 2026. Official pricing page
Estimated monthly cost
$5,250
per month
- per day
- $175.00
- per request
- $0.0175
Cannot estimate: a needed price is not published.
Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.
Monthly cost by workload
| Workload | Per month |
|---|---|
| Chatbot1,000 in / 500 out tokens, 10,000 requests a day | $5,250/mo |
| RAG8,000 in / 500 out tokens, 5,000 requests a day | $7,875/mo |
| Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input | $3,600/mo |
Context and capabilities
- Context
- 200,000 tokens
- Max output
- 64,000 tokens
- Input
- text, image, pdf
- Output
- text
- Knowledge cutoff
- May 2025
- Open weights
- No
- Tool calling
- Yes
- Reasoning
- Yes
- Structured outputs
- Yes
Capabilities and limits as listed by models.dev.
Similarly priced models
- Claude Opus 5.5 · $4.00 in / $20.00 out
- Kimi K3 · $3.00 in / $15.00 out
- GPT-6 Astra · $10.00 in / $50.00 out
- Gemini 3.1 Pro Preview · $2.00 in / $12.00 out
Price history
No price changes since we started tracking on Oct 8, 2026.
Questions
- How much does Claude Opus 4.5 cost per month?
- For a chatbot handling 10,000 requests a day with 1,000 input and 500 output tokens each, Claude Opus 4.5 costs about $5,250 per month at the provider's official prices (verified) ($5.00 per 1M input tokens, $25.00 per 1M output tokens).
- Does Claude Opus 4.5 support prompt caching?
- Yes. Cached input costs $0.50 per 1M tokens, compared with $5.00 for regular input. Writing to the cache costs $6.25 per 1M tokens.
- How long is Claude Opus 4.5's context window?
- Claude Opus 4.5 accepts up to 200,000 tokens (200K) of context and returns up to 64,000 tokens per response.
- Does Claude Opus 4.5 have a batch price?
- Yes. Asynchronous batch requests cost $2.50 per 1M input tokens and $12.50 per 1M output tokens.