Latest Claude Sonnet with improved reasoning and extended thinking.
OffRail routes requests to the best providers that are able to handle your prompt size and parameters.
Latest Claude Sonnet with improved reasoning and extended thinking. You can access it through OffRail's OpenAI-compatible API with automatic provider routing, fallback, and cost analytics.
Pricing for Claude Sonnet 4.5 (2025-09-29) on OffRail starts at $3.00 per million input tokens and $15.00 per million output tokens, depending on the provider. The pricing table above always reflects the current per-provider rates.
Claude Sonnet 4.5 (2025-09-29) supports a context window of up to 200,000 tokens on its largest provider deployment.
Claude Sonnet 4.5 (2025-09-29) is served by Anthropic, AWS Bedrock through OffRail. Requests are automatically routed to the best available provider, with fallback when a provider has issues.
Yes. Claude Sonnet 4.5 (2025-09-29) supports both tool (function) calling and strict JSON output schema (upstream-enforced) through OffRail.
Claude Sonnet 4.5 (2025-09-29) was released on September 29, 2025.
Claude Opus 5
1,000,000 context$5.00 in / $25.00 out per 1M
Claude Sonnet 5
1,000,000 context$2.00 in / $10.00 out per 1M
Claude Fable 5
1,000,000 context$10.00 in / $50.00 out per 1M
Claude Opus 4.8
1,000,000 context$5.00 in / $25.00 out per 1M
Claude Opus 4.7
1,000,000 context$5.00 in / $25.00 out per 1M
Claude Sonnet 4.6
1,000,000 context$3.00 in / $15.00 out per 1M