claude-sonnet-4-5-20250929
Auto-routeranthropic/claude-sonnet-4-5-20250929
Context
200K
Max output
64K
Input / 1M
$3.00
Output / 1M
$15.00
Modality
Chat
Cutoff
Jan 2023
About this model
Highest intelligence across most tasks with exceptional agent and coding capabilities
Best suited for
- High-throughput enterprise workloads, document processing, knowledge worker tools, and large-scale applications balancing quality, performance, and cost.
Built-in tools
Hosted by the gateway — enable them per request without wiring your own endpoint.
Capabilities
Vision
Accepts images alongside text in the same message.
Tools
Native function calling, so agents can invoke your endpoints.
System prompt
Honours a dedicated system role, separate from the user turn.
Supported parameters
creativity_levelControls the creativity of responses. Higher values (e.g., 0.7) increase creativity; lower values (e.g., 0.2) make responses more predictable.
max_tokensMax Tokens LimitSpecifies the maximum number of text units (tokens) allowed in a response, limiting its length.
top_pAnthropic Claude computes the cumulative distribution over all the options for each subsequent token in decreasing probability order and cuts it off once it reaches a particular probability specified by top_p. You should alter either temperature or top_p, but not both.
toolsLists tool definitions or capabilities available to the model.
tool_choiceDecides whether to use tools or just the model for generating responses.
response_typeDefines the format or type of the generated response.
streamSends the response in real-time as it's being generated.
Use this model
OpenAI-SDK compatible, with gateway fallback and routing across providers.
Other Anthropic models
| Model | Context | Max output | Input | Output | Capabilities |
|---|---|---|---|---|---|
| claude-haiku-4-5-20251001 Chat | 200K | 64K | $1.00 | $5.00 | Vision, Files, Tools, System prompt |
| claude-opus-4-5-20251101 Chat | 200K | 64K | $5.00 | $25.00 | Vision, Files, Tools, System prompt |
| claude-opus-4-6 Chat | 200K | 128K | $5.00 | $25.00 | Vision, Files, Tools, System prompt |
| claude-sonnet-4-6 Chat | 200K | 64K | $3.00 | $15.00 | Vision, Files, Tools, System prompt |
| claude-opus-4-7 Chat | 1M | 128K | $5.00 | $25.00 | Vision, Files, Tools, System prompt, Reasoning |
| claude-sonnet-5 Chat | 1M | 128K | $3.00 | $15.00 | Vision, Files, Tools, System prompt, Reasoning |
| claude-fable-5 Chat | 200K | 64K | $5.00 | $15.00 | Vision, Files, Tools, System prompt |
| claude-opus-4-1 Chat | 200K | 64K | $15.00 | $75.00 | Vision, Files, Tools, System prompt |
| claude-opus-4-1-20250805 Chat | 200K | 64K | $5.00 | $15.00 | Vision, Files, Tools, System prompt |
| claude-opus-5 Chat | 200K | 64K | $1.00 | $1.00 | Files, System prompt |
| claude-fable-5-1 Chat | 200K | 64K | $5.00 | $25.00 | Vision, Files, Tools, System prompt |
| claude-mythos-5 Chat | 200K | 64K | $1.00 | $1.00 | Vision, Files, Tools, System prompt |
Pricing & provider details
Anthropic
anthropic/claude-sonnet-4-5-20250929
- Input · per 1M
- $3.00
- Output · per 1M
- $15.00
- Cached input · per 1M
- —
- Context window
- 200,000 tokens
- Max output
- 64,000 tokens
- Knowledge cutoff
- Jan 2023
- Auto-router
- Supported
Start building today
Route claude-sonnet-4-5-20250929 — and every other model in the catalogue — through one endpoint, with failover built in.