Anthropic / MODEL PROFILE

Claude Opus 5

Earlier Opus generation for text and code tasks.

Specifications

Official API ID: claude-opus-5
Documented version: claude-opus-5
Status: legacy
Shared context window: 1,000,000
Input token limit: Not verified
Maximum output: 128,000
Input types: text, image
Output types: text
Reasoning: yes
Structured output: Not verified
Function calling: Not verified
Streaming: Not verified
Released: 2026-07-24

Limits are documented separately; an unknown input limit does not mean unlimited input. Availability depends on your provider account and region.

OFFICIAL DIRECT API

Text token pricing

USD per 1 million tokens · Standard paid tier

Input: $5.00
Output (including thinking): $25.00
Cached input read: $0.50
Default cache write: Not verified
5-minute cache write: $6.25
1-hour cache write: $10.00

Text tokens only. Output includes thinking tokens. Cache reads are a subset of input. Cache creation, tools and media fees are excluded.

Compare costs

BENCHMARK EVIDENCE

No reliable data available

Comparable results with confirmed reuse permission have not been published here yet.

A published result must include the exact model version, benchmark version, original value and unit, test date, conditions and source. No scores or overall rankings are inferred.

Sources & verification

Official model documentation

Official pricing source

Manually verified 2026-10-09. Price effective date: not established by source.