Claude Sonnet 4.5 API Pricing 2026
Compare pricing, benchmarks, and providers for Claude Sonnet 4.5. Find the best value for your use case.
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Overview
Claude Sonnet 4.5 was released on September 29, 2025. Pricing starts at $3.00 per million input tokens and $15.00 per million output tokens. The model supports a context window of up to 1.0M tokens. API access is available through Anthropic.
Pricing Comparison
Compare Claude Sonnet 4.5 with 10 similar models by price.
Current Pricing (per 1M tokens)
11 models
Provider | Model | Input $/M | Output $/M | Coding | MMLU | GPQA | Context | Actions |
|---|---|---|---|---|---|---|---|---|
$3.000 | $15.000 | 59.0 | 86.0 | 72.7 | 1,000,000 | |||
$2.500 | $10.000 | — | — | — | 128,000 | |||
$2.500 | $10.000 | 31.7 | — | 52.1 | 128,000 | |||
CO | $2.500 | $10.000 | 28.7 | 71.2 | 52.7 | 256,000 | ||
$2.500 | $10.000 | — | — | — | 128,000 | |||
$2.500 | $10.000 | — | — | — | 8,000 | |||
$2.500 | $10.000 | — | — | — | 8,000 | |||
AM | $2.500 | $12.500 | 31.7 | 73.3 | 56.9 | 1,000,000 | ||
$3.000 | $4.000 | — | — | — | 16,385 | |||
X | $3.000 | $15.000 | — | — | — | 131,072 | ||
$3.000 | $15.000 | — | — | — | 200,000 |
* Some models use tiered pricing based on prompt length. Displayed prices are for prompts ≤ 200k tokens.
Compare Providers
Claude Sonnet 4.5 is available from multiple providers with different pricing and availability.
Provider Pricing
3 models
Provider | Input $/M | Output $/M | Uptime |
|---|---|---|---|
 Amazon Bedrock Best Price | $3.000 | $15.000 | 100.0% |
 Google Best Price | $3.000 | $15.000 | 100.0% |
Anthropic Best Price | $3.000 | $15.000 | 100.0% |
Cost vs. Quality
Compare Claude Sonnet 4.5's benchmark performance against all models.
Detailed Benchmark Scores
| Benchmark | Standard | Thinking |
|---|---|---|
| Intelligence | 37.1 (88th) | 42.9 (88th) |
| Coding | 33.5 (84th) | 38.6 (88th) |
| Math | 37.0 (39th) | 88.0 (68th) |
| MMLU Pro | 86.0 (91th) | 87.5 (89th) |
| GPQA | 72.7 (68th) | 83.4 (75th) |
| LiveCodeBench | 59.0 (60th) | 71.4 (58th) |
| AIME | - | - |
| Aider | - | - |
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