Anthropic · Claude

Claude Opus 4.8

Generally availableText / reasoning model

The high-end model of Anthropic’s Claude 4 line — a heavyweight coder and reasoner.

Yes — Claude Opus 4.8 is a real Anthropic model.

Released 2026 by Anthropic, Claude Opus 4.8 is part of the Claude family. It's available through Anthropic's API, and we run it on PromptFrenzy — the examples below are real, unedited generations it produced.

Maker

Anthropic

Released

2026

Input price

$5 / 1M

Output price

$25 / 1M

What is Claude Opus 4.8?

Claude Opus 4.8 is the top model of Anthropic’s Claude 4 generation, known for strong coding and long-form reasoning. It features in our Three.js showdown, where it produced detailed, working scene code. It remains a capable choice for demanding work even alongside the newer Fable 5.

What Claude Opus 4.8 actually produces

Real, unedited outputs from Claude Opus 4.8 in our model showdowns — same brief, same constraints as every other model, one shot each.

197s to generate14,127 output tokens

View this generation →From: Cyberpunk Alley in Three.js →

Claude Opus 4.8 output for Pelican on a Bicycle: Claude Fable 5 vs GPT-5.5 Pro vs Gemini 3.1 Pro

9s to generate

From: Pelican on a Bicycle →

See Claude Opus 4.8 compared head-to-head

Compare every model side-by-side

See how Claude Opus 4.8 stacks up against the other frontier models on the same brief.

Browse all model showdowns →