Anthropic
Claude Sonnet 4.5
anthropic/claude-sonnet-4.5
Input
$3.00
per 1M tokens
Output
$15.00
per 1M tokens
Cached input
$0.30
per 1M tokens
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...
- Released
- Context window
- 1M tokens
- Max output
- 64K tokens
- Input
- text, image, file
- Output
- text
- Reasoning
- Yes
Price history
No price changes since we started tracking on .
Providers on OpenRouter
7 endpoints serve this model. Uptime is OpenRouter's share of successful requests; prices per 1M tokens.
| Provider | Input | Output | Context window | Uptime 30 min | Uptime 24 h |
|---|---|---|---|---|---|
| Amazon Bedrock | $3.00 | $15.00 | 1M | 100% | 100% |
| Googleglobal | $3.00 | $15.00 | 1M | 100% | 100% |
| Anthropicvendor's own | $3.00 | $15.00 | 1M | 100% | 99.79% |
| Claude Platform on AWS | $3.00 | $15.00 | 1M | — | 99.66% |
| Azureglobal | $3.00 | $15.00 | 200K | — | 72.7% |
| Amazon Bedrockeu-west-1 | $3.30 | $16.50 | 1M | — | 100% |
| Googleus-east5 | $3.30 | $16.50 | 1M | — | — |