Side-by-side comparison

Pick up to 4 models. Differences are what matter for picking.

Models
Spec
Anthropic
Claude Sonnet 4.5
Verified 2026-04-15
DescriptionBalanced flagship: strong coding and agent performance at much lower cost than Opus.
Released2025-09-29
Knowledge cutoff2025-07
Context window200K
Max output64K
Input $/1M$3.00
Output $/1M$15.00
Speed tierFast
Reasoning5/5
Coding5/5
Multilingual5/5
Modalities in
Text
Vision
Modalities out
Text
Tool useYes
JSON modeYes
Open weightsNo
Best use cases
Coding
Agents
Rag
Structured Output
Chat
Best personas
Startup
Developer Tools
Enterprise
Regulated Industry
Weak at
  • · image generation
  • · audio in/out
Compliance
HIPAA-eligibleSOC 2GDPRISO 27001FedRAMP
Data policy
Sources
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