How much does Claude Sonnet 5 cost?
$2 per 1M input tokens and $10 per 1M output tokens. That started as introductory pricing and became the standard price on August 10, 2026.
Anthropic · Claude Sonnet · Available
Claude Sonnet 5
Claude Sonnet 5 is the current generation of Anthropic's Sonnet family, launched June 30, 2026. It costs $2 / $10 per 1M input/output tokens on the API and has a 1M-token context window with 128k max output. In Claude Code the `sonnet` alias points to it on the Anthropic API.
· today
API price per 1M tokens
$2 in / $10 out
Context window
1M tokens
Claude Sonnet 5 specs
| Released | Jun 30, 2026 |
|---|---|
| Status | Available |
| API model ID | claude-sonnet-5 |
| API price (in / out) | $2 / $10 per 1M tokens |
| Context window | 1M tokens |
| Platforms | Claude API |
Where you can use Claude Sonnet 5
- The $2 / $10 introductory price became the standard price on August 10, 2026; the planned rise to $3 / $15 was cancelled.
Claude Sonnet 5 FAQ
What is the Claude Sonnet 5 context window?
1M tokens, with up to 128k output tokens.
Does Claude Sonnet 5 use more tokens than Sonnet 4.6?
Anthropic says Sonnet 5 uses a new tokenizer that produces about 30% more tokens for the same text; the exact increase depends on the content.
Other Anthropic models
Sources
- Claude Developer Platform release notesread 2026-09-24
- Claude API pricingread 2026-09-24
- Claude models overviewread 2026-09-24
- Claude Code model configurationread 2026-09-24