Fable 5

Model ● Covered in 38 stories + Follow

Fable 5 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

Open source release: Amazon Web Services & Strands Harness SiliconANGLE · 1 month ago · 1 Security issue: Mozilla & Anthropic Ars Technica · 1 month ago · 1 Model release: OpenAI & GPT-6 Astra Zvi (Don't Worry About the Vase) · 1 month ago · 3 Model release: Sakana Fugu & Fugu Max Sakana AI · 1 Market development: ASEAN & Anthropic Fortune · 3 Model release: Artificial Analysis & GPT-6 Astra Artificial Analysis · 1 month ago · 1 Market development: OpenAI & Fable 5 Simon Willison’s Weblog · 1 month ago · 1 Feature update: Anthropic & Fable 5 Anthropic · 1

Timeline

Month Quarter Year

Q3 2026

Open source release: Amazon Web Services & Strands Harness Open source release

Model release: Artificial Analysis & GPT-6 Astra Model release

Model release: Fugu Max & Fugu Ultra v2 Model release

Security issue: Alibaba & Anthropic Security issue

Model release: Artificial Analysis & Astra Model release

Feature update: Anthropic & Fable 5 Feature update

Other: Anthropic & Anthropic PBC Other

Model release: Anthropic & DeepSeek Model release

Product launch: Meta & Muse Code Product launch

Model release: Andon Labs & Anthropic Model release

Model release: Anthropic & Claude 5 Model release

Other: Anthropic & Claude Fable 5 Other

Open source release: AMD & Alibaba Open source release

Open source release: Alibaba & Artificial Analysis Open source release

Product launch: Fugu Ultra & Sakana AI Product launch

Model release: AGORA & AI Act Model release

Model release: Fable 5 & GLM 5.2 Model release

Benchmark result: Fable & Fable Benchmark result

Model release: Cursor & Fable 5 Model release

Feature update: Anthropic & Claude Fable Feature update

21 Sep Open source release: Amazon Web Services & Strands Harness
15 Sep Security issue: Mozilla & Anthropic
12 Sep Model release: OpenAI & GPT-6 Astra
11 Sep Model release: Sakana Fugu & Fugu Max
6 Sep Market development: ASEAN & Anthropic
4 Sep Model release: Artificial Analysis & GPT-6 Astra
4 Sep Market development: OpenAI & Fable 5
1 Sep Feature update: Anthropic & Fable 5
23 Aug Other: Anthropic & OpenAI
17 Aug Market development: Exponential View & OpenAI
14 Aug Model release: Google & OpenAI
10 Aug Product launch: Meta & Muse Spark 1.2
28 Jul Model release: Anthropic & OpenAI
25 Jul Model release: Anthropic & Claude Opus 5
25 Jul Model release: Anthropic & Claude Opus 5
24 Jul Model release: Anthropic & Claude Opus 5
24 Jul Model release: Anthropic & Claude Opus 5
24 Jul Model release: Anthropic & Claude Opus 5
24 Jul Model release: Anthropic & Opus 5
22 Jul Model release: White House & Moonshot
21 Jul Open source release: Alibaba & Qwen 3.8
21 Jul Other: Anthropic & SpaceX
20 Jul Open source release: Kimi-K3 & Fable 5
16 Jul Product launch: Sakana AI & Fugu Ultra
13 Jul Market development: Datasette & GPT-5.5
13 Jul Model release: Anthropic & OpenAI
10 Jul Market development: Fable 5 & Claude Opus 4.8
9 Jul Market development: OpenAI & GPT-5.6
8 Jul Market development: Anthropic & Fable
7 Jul Benchmark result: Fable & Fable 5
2 Jul Feature update: Anthropic & Google
2 Jul Model release: Cursor & Fable 5
2 Jul Model release: Fable 5 & Anthropic
2 Jul Feature update: Fable 5 & GLM-5.2
1 Jul Feature update: Anthropic & Fable 5

Q2 2026

Feature update: Claude 5 Fable & Fable 5 Feature update

Policy change: 360 & Anthropic Policy change

Incident: Anthropic & Claude Fable 5 Incident

29 Jun Policy change: Anthropic & 360
29 Jun Policy change: Trump administration & Anthropic
15 Jun Incident: Anthropic & Mythos Preview

Relationships

Products & technology

Anthropic develops this model · 10 sources
Anthropic deploys this model · 2 sources
Integrated with Claude Opus 4.8 · 1 source
Moonshot derived from this model · 1 source
Fable develops this model · 1 source
Cursor deploys this model · 1 source
Enterprise Frontier Safeguards (EFS) integrated with this model · 1 source
Claude Code integrated with this model · 1 source

Competition

Competes with GPT-5.6 Sol · 1 source
Claude Opus 5 competes with this model · 1 source
Fugu Ultra v2 competes with this model · 1 source

Regulation

Trump administration regulated by this model · 1 source