Claude Opus 5 API pricing
Claude Opus 5 costs $5 per million input tokens and $25 per million output tokens. A typical chatbot request (about 1,500 input + 400 output tokens) costs $0.02, or $20.73 per 1,000 requests.
0 characters0 words0 tokens (GPT o200k)
| Model | Per month |
|---|---|
| Claude Opus 5 |
≈ = estimated token count: only OpenAI publishes its tokenizer. Claude counts use Anthropic’s published ratios; use the count_tokens API for an exact number.
Claude Opus 5 price per million tokens
USD, Anthropic standard tier. Prices checked on October 28, 2026.
| Token type | Price per 1M | With Batch API |
|---|---|---|
| Input | $5 | $2.5 |
| Cached input | $0.5 | $0.25 |
| Cache write (5 min) | $6.25 | $3.125 |
| Output | $25 | $12.5 |
Model ID: claude-opus-5 · Source: platform.claude.com
What a Claude Opus 5 request costs
| Request | Per request | Per 1,000 |
|---|---|---|
| Short chat reply 500 input + 200 output tokens | $0.0086 | $8.58 |
| Chatbot turn with context 1,500 input + 400 output tokens | $0.02 | $20.73 |
| Document Q&A (RAG) 8,000 input + 500 output tokens | $0.07 | $69.70 |
| Long-document summary 150,000 input + 2,000 output tokens | $1.12 | $1,123 |
Token counts are measured with GPT's o200k tokenizer and converted for Claude Opus 5 (see below). No caching or batch discount.
Similarly priced models
| Model | Chatbot request | vs Claude Opus 5 |
|---|---|---|
| Claude Sonnet 4.6 Anthropic | $0.01 | −47% |
| GPT-5.6 Sol OpenAI | $0.01 | −32% |
| Claude Opus 5.5 Anthropic | $0.02 | −20% |
| GPT-5.5 OpenAI | $0.02 | −6% |
| GPT-6 Astra OpenAI | $0.04 | +69% |
| Claude Fable 5.1 Anthropic | $0.04 | +100% |
Frequently asked questions
How much does the Claude Opus 5 API cost?
Claude Opus 5 costs $5 per million input tokens and $25 per million output tokens on Anthropic's standard tier. Prices checked on October 28, 2026.
How much does one Claude Opus 5 request cost?
A typical chatbot request with about 1,500 input and 400 output tokens costs about $0.02, or $20.73 per 1,000 requests. Paste your own prompt into the calculator on this page for an exact estimate.
Does Claude Opus 5 support prompt caching?
Yes. Cached input costs $0.5 per million tokens, 90% less than regular input. Writing to the cache (5-minute lifetime) costs $6.25 per million tokens.
Does Claude Opus 5 have a Batch API discount?
Yes: 50% off for requests sent through the Batch API, which may take up to 24 hours. That makes it $2.5 / $12.5 per million input / output tokens.
How are Claude Opus 5 tokens counted?
Claude Opus 5 uses Anthropic's newer tokenizer, which produces about 30% more tokens than earlier Claude models. We estimate about 1.43× the GPT o200k count for the same text.