Fable 5 vs GPT 5.5: Anthropic's model dominated every benchmark, then the government pulled it

Fable 5 vs GPT 5.5: Anthropic's model dominated every benchmark, then the government pulled it

Fable 5 dominated every benchmark (80% vs 59% SWE-Bench) but was pulled by the US government after three days for jailbreak flaws. GPT 5.5 leads by regulation, not capability; the 22-point SWE-Bench gap impacts coding workloads, though OpenAI's lower cost ($5/$30 vs $10/$50) eases the shift.