All Models
Claude Sonnet 4.5
Claude 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...
Benchmarks
Available Providers (24)
| Provider | Model ID | Input Cost | Output Cost | Context | Max Output | Docs |
|---|---|---|---|---|---|---|
 QiHang | claude-sonnet-4-5-20250929 | $0.43/MTok | $2.14/MTok | 200K | 64K | |
 Poe | anthropic/claude-sonnet-4.5 | $2.60/MTok | $13/MTok | 983.0K | 32.8K | |
 NanoGPT | claude-sonnet-4-5-20250929 | $2.99/MTok | $14.99/MTok | 1M | 64K | |
 Requesty | anthropic/claude-sonnet-4-5 | $3/MTok | $15/MTok | 1M | 64K | |
 Vercel AI Gateway | anthropic/claude-sonnet-4.5 | $3/MTok | $15/MTok | 200K | 64K | |
 302.AI | claude-sonnet-4-5 | $3/MTok | $15/MTok | 200K | 64K | |
 DigitalOcean | anthropic-claude-4.5-sonnet | $3/MTok | $15/MTok | 1M | 64K | |
 ZenMux | anthropic/claude-sonnet-4.5 | $3/MTok | $15/MTok | 1M | 64K | |
 Merge Gateway | anthropic/claude-sonnet-4-5-20250929 | $3/MTok | $15/MTok | 200K | 64K | |
 Helicone | claude-4.5-sonnet | $3/MTok | $15/MTok | 200K | 64K | |
 LLM Gateway | claude-sonnet-4-5-20250929 | $3/MTok | $15/MTok | 200K | 64K | |
 Abacus | claude-sonnet-4-5-20250929 | $3/MTok | $15/MTok | 200K | 64K | |
 Vertex (Anthropic) | claude-sonnet-4-5@20250929 | $3/MTok | $15/MTok | 200K | 64K | |
 Azure | claude-sonnet-4-5 | $3/MTok | $15/MTok | 200K | 64K | |
 Anthropic | claude-sonnet-4-5-20250929 | $3/MTok | $15/MTok | 200K | 64K | |
 OpenCode Zen | claude-sonnet-4-5 | $3/MTok | $15/MTok | 1M | 64K | |
 Perplexity Agent | anthropic/claude-sonnet-4-5 | $3/MTok | $15/MTok | 200K | 64K | |
 Kilo Gateway | anthropic/claude-sonnet-4.5 | $3/MTok | $15/MTok | 1M | 64K | |
 Amazon Bedrock | anthropic.claude-sonnet-4-5-20250929-v1:0 | $3/MTok | $15/MTok | 200K | 64K | |
 Databricks | databricks-claude-sonnet-4 | $3/MTok | $15/MTok | 200K | 64K | |
 Azure Cognitive Services | claude-sonnet-4-5 | $3/MTok | $15/MTok | 200K | 64K | |
 Vertex | claude-sonnet-4-5@20250929 | $3/MTok | $15/MTok | 200K | 64K | |
 Neon | claude-sonnet-4 | $3/MTok | $15/MTok | 200K | 64K | |
 Venice AI | claude-sonnet-4-5 | $3.75/MTok | $18.75/MTok | 198K | 64K |
Capabilities
Reasoning
Tool Calling
Attachments
Open Weights
Structured Output