FableGuide News
July 12 is the last day Fable 5 is included — credits from the 13th
July 12, 2026: Anthropic extended the included-in-plan window from July 7 to July 12 after backlash. Today is the last day Fable 5 counts toward Pro/Max/Team weekly limits; from July 13 it draws prepaid usage credits at $10/$50 per MTok.
Fable 5 hits 80.3% on SWE-Bench Pro
On the harder SWE-Bench Pro, Fable 5 leads Opus 4.8 (69.2%) and GPT-5.5 (58.6%) — and on FrontierCode's hardest split it more than doubles the field. The gap widens as problems get harder.
The nine-layer guide to building an agent on Fable 5
A complete, runnable field guide to running Fable 5 unattended — an agentic OS in nine layers, with a narrated video and a data twin.
The free window has closed — Fable 5 now needs credits
June 23, 2026: the free window on claude.ai paid plans has ended. Fable 5 now requires usage credits on Pro, Max, Team, and seat-based Enterprise.
Anthropic releases Claude Fable 5 and Mythos 5
June 9, 2026: Anthropic released Claude Fable 5 (claude-fable-5, $10/$50 per MTok) and restricted-access Mythos 5.
The first independent numbers arrive
Day-two independent data on Claude Fable 5: 95.0% on SWE-Bench Verified, #2 of 123 on BenchLM's provisional leaderboard, weaker multimodal placement,
The June 23 credit gate draws backlash
Subscribers are criticizing Anthropic's plan to move Fable 5 behind usage credits after June 22, calling the two-week free window fake scarcity. What'
Fable 5 can quietly limit frontier-AI development work
Beyond the visible safeguards, Anthropic says Fable 5 limits effectiveness on frontier LLM-development tasks — pretraining pipelines, training infrast
Bedrock, Databricks, Harvey: the platform wave
Within a day of launch, Claude Fable 5 landed on Amazon Bedrock, Databricks (via Unity AI Gateway), and legal-AI platform Harvey — the enterprise dist
Fable 5 free on subscriptions through June 22
Claude Fable 5 is included at no extra cost on Pro, Max, Team, and seat-based Enterprise plans June 9–22, 2026. From June 23 it requires usage credits
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