Opus 4.8

Model ● Covered in 13 stories + Follow

Opus 4.8 is tracked in TLDRocket’s model dataset. Explore the recorded developments, relationships and supporting evidence below. Coverage reflects our monitored sources and may be incomplete.

Updated 26 October 2026

Specifications

No specifications recorded yet.

Latest developments

Other: Anthropic & OpenAI Simon Willison’s Weblog · 2 months ago · 1 Market development: DeepSeek & V4 Flash Vision Exp SiliconANGLE · 2 months ago · 1 Product launch: Hark & Handoff TechCrunch · 2 months ago · 7 Model release: Anthropic & Opus 5 Ars Technica · 3 months ago · 4 Model release: Anthropic & Opus 5 TechCrunch · 3 months ago · 7 Model release: Z.ai & Anthropic IEEE Spectrum · 3 months ago · 7 Open source release: Moonshot AI & Kimi K3 The New Stack · 3 months ago · 5 Model release: Moonshot AI & Kimi K3 TechCrunch · 3 months ago · 7

Timeline

Month Quarter Year

Q3 2026

Other: Anthropic & Anthropic PBC Other

Product launch: Handoff & Handoff Product launch

Model release: Anthropic & Claude 5 Model release

Open source release: AMD & Alibaba Open source release

Model release: Claude Fable 5 & Deepseek v4 Pro Model release

Model release: AGORA & AI Act Model release

Model release: ChatGPT Atlas & ChatGPT Work Model release

Benchmark result: Claude Fable 5 & Fable Benchmark result

23 Aug Other: Anthropic & OpenAI
21 Aug Market development: DeepSeek & V4 Flash Vision Exp
5 Aug Product launch: Hark & Handoff
24 Jul Model release: Anthropic & Opus 5
24 Jul Model release: Anthropic & Opus 5
21 Jul Model release: Z.ai & Anthropic
17 Jul Open source release: Moonshot AI & Kimi K3
16 Jul Model release: Moonshot AI & Kimi K3
13 Jul Market development: Datasette & GPT-5.5
10 Jul Market development: Fable 5 & Claude Opus 4.8
10 Jul Model release: OpenAI & GPT-5.6
5 Jul Benchmark result: Claude Fable 5 & Remote Labor Index

Q2 2026

24 Jun Market development: Anthropic & Claude Fable 5

Relationships

Products & technology

Anthropic develops this model · 5 sources
Anthropic deploys this model · 1 source

Competition

DeepSeek competes with this model · 1 source