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  1. Models
  2. Text
  3. Anthropic

Claude 4.5 Opus Thinking

Claude Opus 4.5 with visible thinking for tougher coding, agent, and research work—built to show its reasoning while tackling long, complex tasks.

  • Reasoning
  • Vision
  • Native PDF input
  • Tool Calling
  • Structured Output

Added Nov 1, 2025

Pricing

Auto routing · per 1M tokens
Input
$5.00
Output
$25.00
Cache read
$0.50
Compare provider prices

Specifications

Context window
200K
Max output
64K
Avg output (7d)
1.2K tokens
Longer than 73% of models

Benchmarks

Sourced from Vectara.

Hallucination Rate

10.9%

Hallucination Rate: 10.9
Better than 34% of models compared

Factual Consistency

89.1%

Factual Consistency: 89.1
Better than 34% of models compared

Answer Rate

98.7%

Answer Rate: 98.7
Better than 30% of models compared

Avg Summary Length

Average generated summary length

114.5

Last updated 2026-10-22 · Matched as anthropic/claude-opus-4-5-20251101

Vectara Leaderboard

Providers

Auto routing is available for this model. Explicit provider selection is not available.

Cache write /M
Auto
Auto
Recommended
$5.00$25.00$0.50$6.25N/AN/A
Batch API
ProviderInputOutputCached inputCache write
Anthropic
Anthropicclaude-opus-4-5-20251101:thinking
$2.50/M$12.50/M$0.25/M$3.13/M

Reliability

Related text models

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Anthropic Claude Opus 4.8 with text, image, and file inputs and a 1M-token context window.

Claude Opus 4.8 Thinking

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Anthropic Claude Opus 4.8 with thinking enabled.

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