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OpenRouter

Claude Opus 4 model ID, context window & pricing

claude-opus

Quick facts

Model ID anthropic/claude-opus-4
Source OpenRouter
Context Window 200000
Pricing $15.00 input / $75.00 output per 1M tokens
Capabilities tool calling, reasoning, temperature control

Model overview

Claude Opus 4 is an AI model from OpenRouter with 200000 token context window and image, text, pdf input support.

Published pricing is $15.00 input and $75.00 output per 1M tokens.

  • Workloads that use image, text, pdf inputs with text outputs.
  • Agent and tool workflows that need function calling.
  • Reasoning-heavy prompts where stepwise problem solving matters.
Model ID anthropic/claude-opus-4
Provider OpenRouter
Family claude-opus
Status -
Knowledge Cutoff 2025-01-31
Release Date 2025-05-22
Input Modalities image, text, pdf
Output Modalities text
Context Window 200000
Input Limit -
Output Limit 32000
Tool Calling Yes
Reasoning Yes
Structured Output No
Temperature Control Yes
Open Weights No
Input Cost / 1M tokens $15.00
Output Cost / 1M tokens $75.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $1.50
Cache Write Cost / 1M tokens $18.75