Choose a model to open its comparison page.
Claude Sonnet 4.5 benchmark, API pricing, and provider data cover 483 API providers, with prices starting at $0.0059/M. Claude Sonnet 4.5 free API options are available from 9 providers. The page also shows measured API speed and first-token latency.
Anthropic Claude Sonnet 4.5 balances strong reasoning, coding, and agent capabilities with lower latency and cost than Opus, making it a practical default for production assistants.
Observed-capability estimates with uncertainty reported separately from independent benchmark families.
Input and output token limits for this model, plus how it ranks on long-context understanding.
1 metric
2 metrics
2 metrics
6 metrics · Rated
4 metrics · Estimated
5 metrics · Estimated
1 metric · Provisional
4 metrics · Estimated
0 metrics · No data
1 metric · No data
0 metrics · No data
Third-party OpenRouter endpoint data, shown separately from LMSpeed measurements. Some 30-minute live performance fields only appear after syncing with an OpenRouter API key.
| Provider endpoint | Input | Output | 1d uptime | 30m latency | 30m throughput | Context / output |
|---|---|---|---|---|---|---|
Amazon Bedrock amazon-bedrock | $3/M | $15/M | 99.9% | — | — | 1M tokens / 64K tokens |
Google google-vertex/global | $3/M | $15/M | 99.8% | — | — | 1M tokens / 64K tokens |
Anthropic anthropic | $3/M | $15/M | 99.8% | — | — | 1M tokens / 64K tokens |
Google google-vertex/us-east5 | $3/M | $15/M | 99.8% | — | — | 1M tokens / 64K tokens |
Anthropic anthropic/2 | $3/M | $15/M | 88.7% | — | — | 1M tokens / 64K tokens |
Amazon Bedrock amazon-bedrock/eu-west-1 | $3/M | $15/M | — | — | — | 1M tokens / 64K tokens |
Azure azure/us-east-2 | $3/M | $15/M | — | — | — | 200K tokens / 64K tokens |
Amazon Bedrock anthropic/claude-on-aws | $3/M | $15/M | — | — | — | 1M tokens / 64K tokens |
Compare Claude Sonnet 4.5 API pricing across 474 providers. Prices range from $0.0059/M to $10950.00/M. Omini Api offers the lowest rate at $0.0059/M. 9 providers offer free API credits or a free tier.
