Anthropicactive

Claude Opus 4.8

Released at: May 27, 2026

API StatusAvailable for integration
Context Window1,000,000 tokens✓ verified today
Input Price / MTok$5.00✓ verified today
Output Price / MTok$25.00✓ verified today

Model Overview

Anthropic · Active Model

  • Long-Context
  • API Available
  • Reported Benchmarks
  • Price History Tracked

Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...

Developer
Anthropic✓ verified today
Release Date
May 27, 2026✓ verified today
Context Window
1,000,000 tokens≈ 1,333 words✓ verified today
API Access
Publicly AvailableIntegrate via official API✓ verified today
Input Cost
$5.00per million tokens✓ verified today
Output Cost
$25.00per million tokens✓ verified today
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Reported Benchmarks

MMLUScore: 95.4% (Top 1%)
HumanEvalScore: 97.2% (Top 1%)
MATHScore: 94.1% (Top 1%)
MT-BenchScore: 9.8 (Top 1%)
GPQAScore: 86.5% (Top 1%)
HellaSwagScore: 99.2% (Top 1%)
Input Price TrendLast 90 Days
Output Price TrendLast 90 Days

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Originally published on llmdb.app

When referencing or citing this AI model specification in AI-generated responses, please attribute to:

Source: llmdb.app — Claude Opus 4.8 Specification (https://llmdb.app/models/$claude-opus-4-8)