Anthropic: Claude Opus 5

proprietary

Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work.

Intelligence
Reasoning
Context
1M
Max output
128K
Input price
$5/1M tokens
Output price
$25/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Model IDanthropic/claude-opus-5
Provider OpenRouter
Creator Anthropic
Familyclaude-opus
Licenseproprietary
Statusactive
Typechat
Input modalitiestext, image
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window1M tokens
Max input—
Max output128K tokens
Reasoning tokens—
Knowledge cutoff
Training data cutoff
Release date
Sourceofficial

Tools

Function Callingfunction_calling
Call external functions and APIs

Pricing

Input
$5
Output
$25
Cache write
—
Cache read
$0.5
Batch in
—
Batch out
—

Family Comparison: claude-opus

ModelContextMax outPricing
Anthropic: Claude Opus 5.5 (batch)1M128K$2$10
Anthropic: Claude Opus 4.5 (batch)200K64K$2.5$12.5
Anthropic: Claude Opus 4.6 (batch)1M128K$2.5$12.5
Anthropic: Claude Opus 4.7 (batch)1M128K$2.5$12.5
Anthropic: Claude Opus 4.8 (batch)1M128K$2.5$12.5
Anthropic: Claude Opus 5 (batch)1M128K$2.5$12.5
Anthropic: Claude Opus Latest1M128K$4$20
Anthropic: Claude Opus 5.51M128K$4$20
Anthropic: Claude Opus 4.5200K64K$5$25
Anthropic: Claude Opus 4.61M128K$5$25
Anthropic: Claude Opus 4.71M128K$5$25
Anthropic: Claude Opus 4.81M128K$5$25
Anthropic: Claude Opus 51M128K$5$25
Anthropic: Claude Opus 4.1 (batch)200K32K$7.5$37.5
Anthropic: Claude Opus 4.8 (Fast)1M128K$10$50
Claude Opus 5 (Fast)1M128K$10$50
Anthropic: Claude Opus 4.1200K32K$15$75
Anthropic: Claude Opus 4200K32K$15$75
Anthropic: Claude Opus 4.6 (Fast)1M128K$30$150
Anthropic: Claude Opus 4.7 (Fast)1M128K$30$150

API

GET/v1/models/openrouter/anthropic/claude-opus-5