Claude Opus 4.5
anthropic/claude-opus-4-5-20251101
Flagship Claude model for deep reasoning, coding, and long-horizon agents
Capabilities
ReasoningYes
Tool callingYes
Structured outputNo
TemperatureSupported
AttachmentYes
Open weightsNo
Limits
Context200,000 tokens
Max inputN/A
Max output64,000 tokens
Details
Familyclaude-opus
Knowledge cutoff2025-05
Release date2025-11-01
Last updated2025-11-01
Modalities
Inputtext, image, pdf
Outputtext
Benchmarks
SWE-Bench Pro
45.89
resolve rate
Community Rating
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Pricing
Cost per 1M tokens
InputN/A
OutputN/A