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Claude Sonnet 4.5

anthropic/claude-sonnet-4-5

Balanced Claude model for coding, analysis, agent workflows, and cost control

Compare
Context window
200K
Input
Document · Image · Text
Output
Text
Released
2025-09-29
Max output
64K
Knowledge cutoff
2025-07-31
Weights
Closed
Capabilities
Attachments, Reasoning, Temperature, Tool call

Pricing

No official pricing available.

Performance

Overall capability

45.6/100

Coding
43.2
Reasoning
36.4
Professional work
44.2
Knowledge & language
55.3
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ModelRegistry · Catalog updated 2026-11-14