Anthropic/ Claude
Claude Sonnet 4.5
anthropic/claude/sonnet-4-5-20250929
Balanced Claude model for coding, analysis, agent workflows, and cost control
Released
2025-09-29
Context window
200K
Max output
64K
Weights
Closed
Modalities
Input
TextImageDocument
Output
Text
Identity
- Version
- claude-sonnet-4-5-20250929
- Knowledge cutoff
- 2025-07-31
- Aliases
- Claude Sonnet 4.5 (latest), Claude Sonnet 4.5
Providers
| Provider | Provider model ID | Protocol | Context | Max output | Input | Output | Capabilities | Notes | Pricing | Streaming |
|---|---|---|---|---|---|---|---|---|---|---|
| AnyAPI | anthropic/claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | - | Yes |
| Snowflake Cortex | claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | - | Yes |
| Poe | anthropic/claude-sonnet-4.5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $2.6/M · cache read $0.26/M output $13/M · cache write $3.2/M | Yes |
| NanoGPT | claude-sonnet-4-5-20250929 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M | Yes |
| NEAR AI Cloud | anthropic/claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15.5/M · cache write $3.75/M | Yes |
| LLM Gateway | claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| LLM Gateway | claude-sonnet-4-5-20250929 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| OpenCode Zen | claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | Interleaved output | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| GitHub Copilot | claude-sonnet-4.5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| 302.AI | claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M output $15/M | Yes |
| 302.AI | claude-sonnet-4-5-20250929 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M output $15/M | Yes |
| Helicone | claude-sonnet-4-5-20250929 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Neon | claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Pioneer | claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | Interleaved output | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| ZenMux | anthropic/claude-sonnet-4.5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Abacus | claude-sonnet-4-5-20250929 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M output $15/M | Yes |
| Azure Cognitive Services | claude-sonnet-4-5 | custom | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Venice AI | claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3.75/M · cache read $0.375/M output $18.75/M · cache write $4.69/M | Yes |
| Azure | claude-sonnet-4-5 | openai_responses | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| QiHang | claude-sonnet-4-5-20250929 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $0.43/M output $2.14/M | Yes |
| OrcaRouter | anthropic/claude-sonnet-4.5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Requesty | anthropic/claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Kilo Gateway | anthropic/claude-sonnet-4.5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Merge Gateway | anthropic/claude-sonnet-4-5-20250929 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Vercel AI Gateway | anthropic/claude-sonnet-4.5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| OpenRouter | anthropic/claude-sonnet-4.5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | Moderated | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Anthropic | claude-sonnet-4-5 | anthropic_messages | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Anthropic | claude-sonnet-4-5-20250929 | anthropic_messages | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Cloudflare AI Gateway | anthropic/claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M · cache write $3.75/M | Yes |
| Jiekou.AI | claude-sonnet-4-5-20250929 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $2.7/M output $13.5/M | Yes |
| Perplexity Agent | anthropic/claude-sonnet-4-5 | openai_chat | 200K | 64K | TextImageDocument | Text | AttachmentsReasoningTool callTemperature | - | input $3/M · cache read $0.3/M output $15/M | Yes |
Capabilities
AttachmentsReasoningTool callTemperature
Official price
input $3/M · cache read $0.3/M
output $15/M · cache write $3.75/M