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Models2026-06-29 · source-backed
Morph lays out the practical fallout of the June 12 export directive. Because access can't be gated by nationality in real time, the two top SWE-bench Verified coding models, Claude Mythos 5 at 95.5% and Fable 5 at 95%, went dark for all users. That leaves Opus 4.8 at 88.6% Verified as the practical frontier you can actually use today. Plan your model fallbacks accordingly, and don't build a workflow that assumes a model you can be cut off from by policy overnight.
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The most capable Claude tier is now government-gated. Let that sink in for a second. Not export-controlled to China, not restricted to enterprise. Gated by Commerce, for a U.S. company's U.S. customers. A June 26 letter from Commerce Secretary Howard Lutnick partially lifted t...
Terminal-Bench 2.1 results (entries dated June 17) put Codex CLI on GPT-5.5 first at 83.4%, Claude Code on Fable 5 second at 83.1%, and Claude Code on Opus 4.8 at 78.9%. The asterisk matters more than the ranking: Fable 5 and Mythos 5 have been export-suspended since June 12,...
As of today Fable 5 is no longer bundled at no extra cost in seat-based plans, and continued use draws on usage credits. The wrinkle: Fable 5 was offline June 12 to ~June 18 under the US export-control directive, so subscribers effectively got 4-5 of the advertised 13 free day...
Fable 5 and Mythos 5 went dark this week. Not a soft sunset with a six-month migration window. A US export directive, and within hours the models were unavailable to any foreign national anywhere on earth. Enterprise teams outside the US woke up to API calls failing against a...
This one's been building for days and it crystallized this week. Per The Register, the incident behind the US export-control block on Anthropic's Fable 5 and Mythos 5 wasn't a jailbreak or a guardrail bypass. It was a plain three-word prompt, "fix this code," run against CVE-l...
Alibaba released Qwen3.6-27B on April 22. Dense architecture. Open weights. 77.2% on SWE-bench Verified, within 3.7 points of Claude Opus 4.6. On SkillsBench, it scores 48.2% versus its own 397B MoE predecessor's 30.0%. That's a 77% improvement with 14.8x fewer parameters. Let...
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