Claude Fable 5.2 and Mythos 5.2
Anthropic’s top model, now up to 30% faster than 5.1
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Claude Fable 5.2 and Mythos 5.2 are Anthropic’s upgraded frontier models for the hardest technical work. They are the same underlying model: Fable is open to all users, while Mythos, without some of Fable’s cyber and biology safeguards, goes to vetted organizations. Per Anthropic, outputs are up to 30% faster than 5.1 at a lower price ($8 input, $40 output per million tokens). Fable 5.2 scores 49.1% on FrontierCode 2.0, up from 32.4%. API ID: claude-fable-5-2.
PH · launched Nov 10, 2026 · 2 upvotes (top 19%) · 0 views
Niche: large language models · 191 launches, 5 in the last 7 days ▼ -29% · Explore this niche →
Category and tags
- Horizontal
- Model & infra
- B2B
- AI-native
- Commercial product
- Artificial Intelligence
Visit website ↗ Source listing ↗
More like this: all 191 launches in large language models →
Could you build this?
No This is a frontier foundation model from Anthropic. Building an equivalent requires large-scale pretraining compute, proprietary data, and research teams, none of which vibe coding provides.
What it would actually take: Reproducing this would take a large pretraining run on trillions of tokens across heavy GPU or TPU clusters, followed by RLHF or constitutional fine-tuning and extensive safety evaluation. The core resources are research talent, proprietary data pipelines, and hundreds of millions of dollars in compute.
Competitors
Other products that read as similar to this one : 67 launches clear the similarity bar, closest 8 shown.
Attention rank: #20 of 68 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 292 days after the earliest competitor.
- Claude Sonnet 5.5 · ph · 2026-09-29 · 223 upvotes · similarity 0.57
- Claude Opus 5.5 · ph · 2026-09-23 · 287 upvotes · similarity 0.49
- NexPloreInfo · ph · 2026-10-17 · 1 upvotes · similarity 0.49
- Claude Haiku 5.5 · ph · 2026-10-08 · 281 upvotes · similarity 0.48
- awesome-fable5-2-videos · github · 2026-11-10 · 11 upvotes · similarity 0.47
- Cognition's SWE-2 · ph · 2026-09-13 · 189 upvotes · similarity 0.47
- awesome-fable-5.2 · github · 2026-11-10 · 284 upvotes · similarity 0.45
- Humor Arena · hn · 2026-08-05 · 10 upvotes · similarity 0.44
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.