Fugu-Ultra v1.1 gains up to 7.9 points at unchanged pricing
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Announcing Fugu-Ultra v1.1 🐡 We’ve been thrilled by the reception to the Fugu model family. Thanks to everyone who tried it, shared feedback, and trusted Fugu with real work. Today, we’re releasing Fugu-Ultra v1.1 → https://t.co/hhO6qTawgb Upgraded to incorporate the latest frontier models, resulting in stronger performance across every benchmark shown, including gains of up to 7.9 points over v1.0, with particularly strong results on ProgramBench and Terminal Bench 2.1. Fugu-Ultra v1.1 is more capable across coding, agentic tasks, and advanced reasoning, and available at the same price as Fugu-Ultra v1.0 The frontier keeps moving, and Fugu keeps getting better.
Context
Sakana AI says Fugu-Ultra v1.1 improves its system for coordinating multiple AI models while keeping v1.0 pricing. The release article attributes the upgrade to incorporating newer models.
The announcement's chart places Terminal Bench 2.1 at 90.0 for v1.1 versus 82.1 for v1.0, producing the advertised 7.9-point gain. Other plotted gains are smaller. This is a vendor-reported improvement across the displayed tests, with 7.9 describing one 's change rather than a uniform increase in capability.
- benchmark — A standard public test set for comparing AI models — the shared scoreboards behind every "model X beats model Y" claim.
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