Claude Sonnet 4.5
AnthropicClaude 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...
In
$3.00
Out
$15.00
Blended
$6.00
Where to buy this model
5 access routes| Route | In | Out | Blended | vs |
|---|---|---|---|---|
 Claude Platform on AWS cheapest | $3.00 | $15.00 | $6.00 | - |
| $3.00 | $15.00 | $6.00 | +0% | |
| Amazon Bedrock | $3.00 | $15.00 | $6.00 | +0% |
| $3.00 | $15.00 | $6.00 | +0% | |
| $3.00 | $15.00 | $6.00 | +0% |
● official API · ● cloud platform · ● inference host · USD per 1M tokens. Same model, different providers - price and quantization vary.
- Ctx
- 1M
- max output
- 64K
- cache read /1M
- $0.30
- Family
- claude
- Modalities
- text · image · file
- Features
- json · reasoning · tools
Live pricing, updated 2026-11-03.
Anthropic models at a similar price
| Model | In | Out | Ctx |
|---|---|---|---|
| Claude Sonnet 5 | $2 | $10 | 1M |
| Claude Sonnet 5.5 | $2 | $10 | 1M |
| Claude Sonnet 4.6 | $3 | $15 | 1M |
| Claude Sonnet 4.5 · this model | $3 | $15 | 1M |
| Claude Opus 5.5 | $4 | $20 | 1M |
| Claude Opus 4.5 | $5 | $25 | 200K |