Claude Sonnet 5 API pricing
Claude Sonnet 5 costs $2 per million input tokens and $10 per million output tokens. A typical chatbot request (about 1,500 input + 400 output tokens) costs $0.0083, or $8.29 per 1,000 requests.
0 characters0 words0 tokens (GPT o200k)
| Model | Per month |
|---|---|
| Claude Sonnet 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 Sonnet 5 price per million tokens
USD, Anthropic standard tier. Prices checked on October 28, 2026.
| Token type | Price per 1M | With Batch API |
|---|---|---|
| Input | $2 | $1 |
| Cached input | $0.2 | $0.1 |
| Cache write (5 min) | $2.5 | $1.25 |
| Output | $10 | $5 |
Model ID: claude-sonnet-5 · Source: platform.claude.com
What a Claude Sonnet 5 request costs
| Request | Per request | Per 1,000 |
|---|---|---|
| Short chat reply 500 input + 200 output tokens | $0.0034 | $3.43 |
| Chatbot turn with context 1,500 input + 400 output tokens | $0.0083 | $8.29 |
| Document Q&A (RAG) 8,000 input + 500 output tokens | $0.03 | $27.88 |
| Long-document summary 150,000 input + 2,000 output tokens | $0.45 | $449 |
Token counts are measured with GPT's o200k tokenizer and converted for Claude Sonnet 5 (see below). No caching or batch discount.
Similarly priced models
| Model | Chatbot request | vs Claude Sonnet 5 |
|---|---|---|
| GPT-6.1 Sol OpenAI | $0.0070 | −16% |
| Gemini 4 Argon Google | $0.0072 | −14% |
| GPT-5.6 Terra OpenAI | $0.0078 | −6% |
| Gemini 3.1 Pro (preview) Google | $0.0080 | −4% |
| Claude Sonnet 5.5 Anthropic | $0.0083 | same |
| GPT-5.4 OpenAI | $0.0097 | +18% |
Frequently asked questions
How much does the Claude Sonnet 5 API cost?
Claude Sonnet 5 costs $2 per million input tokens and $10 per million output tokens on Anthropic's standard tier. Prices checked on October 28, 2026.
How much does one Claude Sonnet 5 request cost?
A typical chatbot request with about 1,500 input and 400 output tokens costs about $0.0083, or $8.29 per 1,000 requests. Paste your own prompt into the calculator on this page for an exact estimate.
Does Claude Sonnet 5 support prompt caching?
Yes. Cached input costs $0.2 per million tokens, 90% less than regular input. Writing to the cache (5-minute lifetime) costs $2.5 per million tokens.
Does Claude Sonnet 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 $1 / $5 per million input / output tokens.
How are Claude Sonnet 5 tokens counted?
Claude Sonnet 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.