← the radar · ✳ model tracker

Claude Opus 4.8

● live
Anthropic

Live. On the board as live since 2026-05-27 — the watchers keep tracking it: lineup changes, pricing moves and deprecations all alert.

Answering in 0.8s· checked Is Claude down? →

Watch for Anthropic’s next model, free →Launch report (PDF)

Timeline

2026-05-27
Claude Opus 4.8 verified live — from the vendor's own announcement and catalog listingverified

On the bench index

LMArena: 1,555.8LiveBench: 76.2SimpleBench: 64.8AW Index: 36.4

full comparison table →

Coding leaderboard

#22 of 40 on the coding index, at 47.4 · combines LMArena · Coding, LiveBench · Coding, Vals Vibe Code Bench

the AI coding leaderboard →

The official word

We alert on verified API behavior, never on announcements alone — but when Anthropic speaks, it's here: anthropic.com/news ↗

Where to use Claude Opus 4.8

50 providers list Claude Opus 4.8 in the models.dev catalog (as of 2026-10-27), under the model ids shown below.

Anthropicclaude-opus-4-8
Amazon Bedrockanthropic.claude-opus-4-8 · au.anthropic.claude-opus-4-8 · eu.anthropic.claude-opus-4-8
Vertexclaude-opus-4-8@default
Vertex (Anthropic)claude-opus-4-8@default
Azureclaude-opus-4-8
Azure Cognitive Servicesclaude-opus-4-8
OpenRouteranthropic/claude-opus-4.8
Vercel AI Gatewayanthropic/claude-opus-4.8 · anthropic/claude-opus-4.8-fast
302.AIclaude-opus-4-8
Abacusclaude-opus-4-8
AgentRouterclaude-opus-4-8
AI/ML APIanthropic/claude-opus-4.8

Also listed by AIHubMix, Cloudflare AI Gateway, CommandCode, Cortecs, CrossModel, DaoXE, DevPass (LLM Gateway), DigitalOcean, Eden AI, FastRouter, FreeModel, GitHub Copilot, GitLab Duo, GMI Cloud, Impossibl, Kenari, Kilo Gateway, LLM Gateway, Merge Gateway, Model Oracle AI, Modelis, NanoGPT, NEAR AI Cloud, Neon, Ofox, OpenCode, Opper, OrcaRouter, Poe, Prime Inference, Requesty, routing.run, Snowflake Cortex, Tempr Gateway, UnoRouter, Venice AI, Xpersona, ZenMux.

Listings cover the model family, so a provider may list a sibling tier under the same name. Check the id before you build on it.

Try it first-hand on Anthropic's own Claude Console playground ↗

Claude Opus 4.8: quick answers

Is Claude Opus 4.8 out?

Yes. Claude Opus 4.8 is live and has been since May 27, 2026.

When was Claude Opus 4.8 released?

May 27, 2026.

Is Claude Opus 4.8 good for coding?

On the ArtificialWatch coding index it scores 47.4, #22 of 40 ranked models. The index combines LMArena · Coding, LiveBench · Coding and Vals Vibe Code Bench, taking the median of each model's percentile across them.

Who makes Claude Opus 4.8?

Anthropic. ArtificialWatch also tracks Claude Haiku 5.5, Claude Sonnet 5.5, Claude Opus 5.5, Fable 5.1, Mythos 5.1, Claude Opus 5, Fable 5 and Claude Sonnet 5 from Anthropic.

Where can I use Claude Opus 4.8?

50 providers list it in the models.dev catalog, including Anthropic, Amazon Bedrock, Vertex, Vertex (Anthropic) and Azure. The exact model ids each one lists are on this page.

How much does Claude Opus 4.8 cost?

Anthropic's own API lists Claude Opus 4.8 (claude-opus-4-8) at $5 per million input tokens and $25 per million output tokens, and $0.50 per million cached input tokens. Prices as published in the models.dev catalog, as of 2026-10-27.

What is Claude Opus 4.8's context window?

1M tokens, with up to 128K output tokens per response, as Anthropic lists Claude Opus 4.8 (claude-opus-4-8).

Every live model's API price, side by side → · What a workload costs on Anthropic models →

Head to head

Claude Opus 4.8 vs Claude Opus 5Claude Opus 4.8 vs Fable 5Claude Opus 4.8 vs Claude Sonnet 5Claude Opus 4.8 vs GLM-5.2Claude Opus 4.8 vs GPT-6 AstraClaude Opus 4.8 vs Fable 5.1Claude Opus 4.8 vs Kimi K3Claude Opus 4.8 vs DeepSeek V4Claude Opus 4.8 vs GPT-5.5Claude Opus 4.8 vs ChatGPT-5.6Claude Opus 4.8 vs Qwen 3.8 MaxClaude Opus 4.8 vs Claude Sonnet 5.5

More from Anthropic

Claude Haiku 5.5live since 2026-10-07
Claude Sonnet 5.5live since 2026-09-28
Claude Opus 5.5live since 2026-09-22
Fable 5.1live since 2026-09-01
Mythos 5.1live since 2026-09-01
Claude Opus 5live since 2026-07-24
Fable 5live since 2026-07-01
Claude Sonnet 5live since 2026-06-30

Cite this page

Writing about Claude Opus 4.8? Copy a link or a citation.

<a href="https://artificialwatch.com/model/opus-4-8">Claude Opus 4.8 on ArtificialWatch</a>
ArtificialWatch, "Claude Opus 4.8", https://artificialwatch.com/model/opus-4-8
sweeping every 60 seconds

Know when Anthropic's next model drops. Free.

Free: a Chrome push and an email about 15 minutes after it's confirmed on a public API. Members get a text or a phone call the second it lands.

  • Free forever
  • No card
  • Unsubscribe in one click

Want it the minute it answers? Try Signal 7 days free →

Also: the wire · the bench index · our track record