Fable 5.1 drops medical refusals, but its 85% life-sciences claim draws scrutiny
JeremyNguyenPhD · x · 2026-09-06
Users report Fable 5.1 answers medical questions without refusals or being rerouted to Opus, a clear improvement over Fable 5's public release. Critics question the claimed 85% figure: it's unclear whether it comes from in-house evals or independent testing, and who defines what counts as life-sciences R&D — a detailed personal diagnosis question could still trip the guardrails.
Related event: Fable 5.1 Answers Medical Questions Without Refusals(2 posts)→
More from Models
- GPT-6 Astra users hit frequent 'model at capacity' errors — bytebot · 2026-09-06
- Astra User Says Weekly Token Limits Too Tight: 24-Hour Run Still Unfinished — Wooden_Drag9473 · 2026-09-06
- Researcher says OpenAI's Astra censors his newsletter, fueling safety-sandbagging concerns — sethlazar · 2026-09-06
- Deleting most Skill rules made GPT 6 better, sparking 'Skill is dead' debate — xiaohu · 2026-09-06
- Unverified: GPT-6 Astra matches GLM-5.3 max reasoning with zero reasoning tokens — BLUECOW009 · 2026-09-06
- Dev demo: OpenAI's Astra agent detects and fixes failed states via voice command — BLUECOW009 · 2026-09-06