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Claude Fable 5
Anthropic's most capable model ever โ free until June 22
The model Anthropic only trusted cyberdefenders with โ now public: ๐ SOTA on nearly every benchmark โ #1 on FrontierCode and CursorBench โก Stripe: 50M-line codebase migration in 1 day (was 2+ months) ๐๏ธ Beat Pokรฉmon FireRed with raw screenshots โ no harness needed ๐งฌ Protein design steps ~10x faster ๐ก๏ธ Same weights as Mythos 5, safety classifiers added (under 5% fallback to Opus 4.8) ๐ฐ $10/$50 per M tokens via API โ claude-fable-5 ๐ FREE on Pro, Max and Team plans until June 22
Hey hunters ๐
Hunting this because today Anthropic released the most capable AI model anyone can actually use โ and made it free for two weeks.
Quick backstory: in April, Anthropic built a model so strong (Claude Mythos) it only released it to vetted cyberdefenders and the US government through Project Glasswing. Fable 5 is that same Mythos-class model, with safeguards added so the rest of us can have it. Same weights โ sensitive cyber/bio queries just fall back to Opus 4.8, which happens in less than 5% of sessions.
What early testers are reporting:
โก Stripe: a codebase-wide migration across 50 million lines of Ruby done in ONE day โ estimated at 2+ months for a full engineering team by hand.
๐ Benchmarks: #1 on Cognition's FrontierCode, #1 on CursorBench ("state of the art" โ Cursor's CEO), first model to break 90% on Hex's analytics benchmark, top score on Hebbia's Finance Benchmark.
๐๏ธ Vision: rebuilt a web app's source code from screenshots alone. Beat Pokรฉmon FireRed with raw screenshots โ no maps, no helper harness. Previous Claude models needed heavy scaffolding to even play.
๐งฌ Science: Anthropic's protein design experts report ~10x acceleration on drug design steps. One of the model's novel biology hypotheses was independently corroborated by an outside lab.
๐ฎ The announcement page has live demos worth seeing โ a solar system simulator derived from physics first principles, autonomous Factorio play, and a CAD editor the model built including its own AI copilot: https://www.anthropic.com/news/c...
๐ฐ Pricing & access:
โข API: $10/$50 per million tokens (less than half of Mythos Preview) as claude-fable-5
โข Subscriptions: included FREE on Pro, Max, Team & Enterprise plans through June 22
โข After June 23 it requires usage credits until capacity expands
One wrinkle worth knowing: Mythos-class traffic carries mandatory 30-day data retention for safety monitoring โ not used for training (details: https://support.claude.com/en/ar...).
If you've got a Claude subscription, you have until June 22 to try the strongest model on the market for free.
So: what's the first thing you're throwing at it? ๐
About Claude Fable 5 on Product Hunt
โAnthropic's most capable model ever โ free until June 22โ
Claude Fable 5 was submitted on Product Hunt and earned 8 upvotes and 1 comments, placing #52 on the daily leaderboard. The model Anthropic only trusted cyberdefenders with โ now public: ๐ SOTA on nearly every benchmark โ #1 on FrontierCode and CursorBench โก Stripe: 50M-line codebase migration in 1 day (was 2+ months) ๐๏ธ Beat Pokรฉmon FireRed with raw screenshots โ no harness needed ๐งฌ Protein design steps ~10x faster ๐ก๏ธ Same weights as Mythos 5, safety classifiers added (under 5% fallback to Opus 4.8) ๐ฐ $10/$50 per M tokens via API โ claude-fable-5 ๐ FREE on Pro, Max and Team plans until June 22
On the analytics side, Claude Fable 5 competes within SaaS, Developer Tools and Artificial Intelligence โ topics that collectively have 1M followers on Product Hunt. The dashboard above tracks how Claude Fable 5 performed against the three products that launched closest to it on the same day.
Who hunted Claude Fable 5?
Claude Fable 5 was hunted by Habib Ferdous. A โhunterโ on Product Hunt is the community member who submits a product to the platform โ uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Claude Fable 5 including community comment highlights and product details, visit the product overview.
Habib Ferdous