Claude Sonnet 4.5
unknownAnthropic · claude-sonnet family
Balanced Claude model for coding, analysis, agent workflows, and cost control
Limits
Context200,000
InputUnknown
Output64,000
Modalities
Inputtext, image, pdf
Outputtext
Release info
Release2025-09-29
Last update2025-09-29
Knowledge cutoff2025-07-31
Provider offerings
Provider-specific prices and limits stay separate from canonical model facts.
| Provider | Provider model ID | Input | Output | Context | Output limit |
|---|---|---|---|---|---|
| Merge Gateway | anthropic/claude-sonnet-4-5-20250929 | $3 / 1M | $15 / 1M | 200,000 | 64,000 |
| NanoGPT | claude-sonnet-4-5-20250929 | $2.992 / 1M | $14.994 / 1M | 1,000,000 | 64,000 |
| LLM Gateway | claude-sonnet-4-5-20250929 | $3 / 1M | $15 / 1M | 200,000 | 64,000 |
| Helicone | claude-sonnet-4-5-20250929 | $3 / 1M | $15 / 1M | 200,000 | 64,000 |
| Abacus | claude-sonnet-4-5-20250929 | $3 / 1M | $15 / 1M | 200,000 | 64,000 |
| 302.AI | claude-sonnet-4-5-20250929 | $3 / 1M | $15 / 1M | 200,000 | 64,000 |
| QiHang | claude-sonnet-4-5-20250929 | $0.43 / 1M | $2.14 / 1M | 200,000 | 64,000 |
| Jiekou.AI | claude-sonnet-4-5-20250929 | $2.7 / 1M | $13.5 / 1M | 200,000 | 64,000 |
| Anthropic | claude-sonnet-4-5-20250929 | $3 / 1M | $15 / 1M | 1,000,000 | 64,000 |
| Vertex | claude-sonnet-4-5@20250929 | $3 / 1M | $15 / 1M | 200,000 | 64,000 |
| Vertex (Anthropic) | claude-sonnet-4-5@20250929 | $3 / 1M | $15 / 1M | 200,000 | 64,000 |
Capabilities
Attachments
Yes
Reasoning
Yes
Tool calling
Yes
Structured output
Unknown
Temperature
Yes