شرکت آنتروپیک نسخه جدید Claude Fable 5.1 رو فرستاده تو میدون و حسابی گرد و خاک به پا کرده

Claude Fable 5.1 is cheaper, substantially stronger on several agentic benchmarks, more concise, and apparently far less trigger-happy (says Anthropic). the tl;dr How much cheaper? -Input/output pricing remains $10/$50 per million -tokens. -Cache reads fall 75% to $0.25. -Anthropic estimates ~25% lower costs for typical workloads and up to ~45% for highly agentic, context-heavy work. BUT: not 45% cheaper for Claude subscriptions. ("...wherever usage is billed by token") How much better than Fable 5? -Scientific agent benchmark: 52.6% vs. 24.7% - more than 2× -AutomationBench: 31.4% vs. 17.1% — an 84% relative gain -GDPval-AA: 1,853 vs. 1,723 -CursorBench: 73.4% vs. 70.5% So: dramatic gains on some long-running tasks, modest improvements elsewhere, not a uniform intelligence jump. Verbosity also seems improved, although there is no standardized score. Rogo reports equal accuracy with 20% fewer tokens. Red Hat found its updates more concise and easier to follow. Every says it used half as many tokens as Opus 5 while running about twice as fast. And fewer unnecessary red flags: -~60% fewer cyber-safeguard interventions per Claude Code session -Biology safeguards reportedly trigger 85% less often on benign elementary biology and medical questions -Vulnerability discovery is now allowed, while exploit generation, penetration testing and binary scanning remain restricted or redirected So far, sounds like a promising release. Although it clearly shows they care much more about business and enterprise users than us subscription pesants. Anyway: Testing time!