Fable

Model ● Covered in 24 stories + Follow

Fable 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 24 October 2026

Specifications

No specifications recorded yet.

Latest developments

Market development: CopilotKit & AG-UI MarkTechPost · 2 weeks ago · 0 Partnership: OpenAI & CERT-UA BBC News · 1 month ago · 5 Model release: Anthropic & Opus 5.5 TechCrunch · 1 month ago · 2 Model release: OpenAI & GPT-6 Astra Zvi (Don't Worry About the Vase) · 1 month ago · 0 Market development: Teleport & Anthropic Simon Willison’s Weblog · 2 months ago · 0 Research publication: OpenAI & Astra Zvi (Don't Worry About the Vase) · 2 months ago · 6 Market development: Anthropic & Figma The Wall Street Journal · 3 months ago · 7 Model release: Anthropic & Opus 5 Ars Technica · 3 months ago · 4

Timeline

Month Quarter Year

October 2026

15 Oct Market development: CopilotKit & AG-UI

September 2026

Partnership: GPT 5.6 Sol & OpenAI Partnership

Model release: AINews & Anthropic Model release

Model release: Artificial Analysis & Astra Model release

23 Sep Partnership: OpenAI & CERT-UA
22 Sep Model release: Anthropic & Opus 5.5
8 Sep Model release: OpenAI & GPT-6 Astra

August 2026

Research publication: Anthropic & Astra Research publication

23 Aug Market development: Teleport & Anthropic
3 Aug Research publication: OpenAI & Astra

July 2026

Model release: Anthropic & Claude 5 Model release

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

Model release: AGORA & AI Act Model release

Model release: GPT-5.6 Sol & GPT-5.6-sol Model release

Feature update: Microsoft & Anthropic Feature update

Benchmark result: Fable & Fable Benchmark result

Other: Prime Radiant & Ada-sen Other

Benchmark result: Claude Fable 5 & Fable Benchmark result

29 Jul Market development: Anthropic & Figma
24 Jul Model release: Anthropic & Opus 5
24 Jul Model release: White House & Moonshot AI
23 Jul Model release: Anthropic & Moonshot
22 Jul Model release: Treasury Department & White House
21 Jul Model release: Z.ai & Anthropic
17 Jul Feature update: Fable & Microsoft
14 Jul Model release: OpenAI & GPT-5.6-sol
13 Jul Model release: OpenAI & GPT-5.6 Sol
8 Jul Market development: Anthropic & Fable
7 Jul Benchmark result: Anthropic & Fable
6 Jul Benchmark result: Fable & PyTorch
3 Jul Other: Fable
2 Jul Benchmark result: Fable & Claude Fable 5
1 Jul Policy change: Anthropic & Trump administration

June 2026

Policy change: 360 & Anthropic Policy change

Incident: Anthropic & Claude Fable 5 Incident

Security issue: Anthropic & Claude 5 Fable Security issue

Model release: Anthropic & Claude Fable Model release

16 Jun Incident: Anthropic & Fable
14 Jun Security issue: Anthropic & Amazon
11 Jun Model release: Anthropic & Claude Fable

Relationships

Products & technology

Anthropic develops this model · 13 sources
Derived from Mythos · 1 source
Moonshot derived from this model · 1 source
OpenAI develops this model · 1 source

Competition

Competes with Claude Opus · 1 source
GPT 5.6 Sol competes with this model · 1 source
Opus 5.5 competes with this model · 1 source