Anthropic
Claude Sonnet 4.5 API prices by provider
anthropic/claude-sonnet-4.5
5 inference providers serve this exact model through OpenRouter. Input and output rates are paired per endpoint; route tags may identify a region or sub-endpoint whose eligibility is not yet verified.
- Active endpoints
- 7 / 7
- Lowest at 1M in + 1M out
- $18.00
- Amazon Bedrock · standard tier
- Context up to
- 1M
- Latest price change
- None yet
- Rates unchanged since first record 2026-09-29
| Provider · route | Tier | Input / 1M | Output / 1M | Cache read | Cache write | Context | Tools | 1M + 1M | Status | Price since |
|---|---|---|---|---|---|---|---|---|---|---|
Amazon Bedrock amazon-bedrock · unknown | Standard | $3.00 | $15.00 | $0.30 | $3.75 | 1M | Yes | $18.00 | Active | Since |
Anthropic anthropic · unknown | Standard | $3.00 | $15.00 | $0.30 | $3.75 | 1M | Yes | $18.00 | Active | Since |
Azure azure/global · unknown | Standard | $3.00 | $15.00 | $0.30 | $3.75 | 200K | Yes | $18.00 | Active | Since |
Claude Platform on AWS claude-on-aws · unknown | Standard | $3.00 | $15.00 | $0.30 | $3.75 | 1M | Yes | $18.00 | Active | Since |
google-vertex/global · unknown | Standard | $3.00 | $15.00 | $0.30 | $3.75 | 1M | Yes | $18.00 | Active | Since |
Amazon Bedrock amazon-bedrock/eu-west-1 · unknown | Standard | $3.30 | $16.50 | $0.33 | $4.125 | 1M | Yes | $19.80 | Active | Since |
google-vertex/us-east5 · unknown | Standard | $3.30 | $16.50 | $0.33 | $4.125 | 1M | Yes | $19.80 | Active | Since |
“—” means no rate is published for that endpoint; it is excluded from estimates, not counted as zero. “Since” is the first record with no rate change observed; “Changed” is the latest observed rate or billing change. Per-request fees: not published for any endpoint here. Status is the upstream operational flag, not a measured uptime.