Claude Sonnet 4
Hybrid reasoning model with superior intelligence for high-volume use cases, and 200K context window
Hybrid reasoning model with superior intelligence for high-volume use cases, and 200K context window
Reasoning
Higher
Speed
Medium
Price
$2.00 • $10.00
Input • Output
Input
Text, Image
Output
Text
Claude Sonnet 4 can understand nuanced instructions and context, recognize and correct its own mistakes, and create sophisticated analysis and insights from complex data. Combined with superior coding, vision, and writing skills, you can use Claude Sonnet 4 for a variety of use cases.
Claude Sonnet 4 can produce near-instant responses or extended, step-by-step thinking that is made visible to the user. API users also have fine-grained control over how long the model thinks for.
1000000 context window
64000 max output tokens
April 2024 knowledge cutoff
Reasoning token support
Modalities
Text
Input and output
Image
Input only
Audio
Not supported
Video
Not supported
Endpoints
Chat Completions
v1/chat/completions
Responses
v1/responses
Realtime
v1/realtime
Assistants
v1/assistants
Batch
v1/batch
Fine-tuning
v1/fine-tuning
Embeddings
v1/embeddings
Image generation
v1/images/generations
Videos
v1/videos
Image edit
v1/images/edits
Speech generation
v1/audio/speech
Transcription
v1/audio/transcriptions
Translation
v1/audio/translations
Moderation
v1/moderations
Completions (legacy)
v1/completions
Features
Streaming
Supported
Function calling
Supported
Structured outputs
Supported
Fine-tuning
Not supported
Distillation
Not supported
Tools
Tools supported by this model when using the Responses API.
Web search
Not supported
File search
Not supported
Image generation
Not supported
Code interpreter
Not supported
Computer use
Not supported
MCP
Not supported