AIAcademy · on Fugu Ultra
The 5-hour limit has been exceeded, so I have to wait 4 hours. However, it kindly provides guidance … I like this one better because it is user-oriented, offering friendly guidance for beginners and general users.
anecdotal
In the wild
Field reports from real model users
Real posts from people using these models on actual prompts and tasks — praise and criticism alike, each linked to its source. Qualitative feedback, never scored or ranked.
Official benchmarks show reported scores. In-the-wild reports show what users hit after release: latency, cost, quota, regressions, surprising wins, and task-specific failures. These are source-linked anecdotes, not benchmark scores.
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Fugu UltraSakana AI
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AM9:21 · on Fugu Ultra
It discovered 27 bugs that Fable 5 couldn't find and fixed all of them. The code quality is impeccable … it implemented about 70,000 lines of new features, resolved 4 issues, and created 7 PRs.
Task Introduced Fugu into a repo previously worked on with Claude Fable 5; ~1 hour of use.
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Ethan Mollick · on Fugu Ultra
it is incredibly slow: my typical coding tests (shaders, interactive scenes) take 30 minutes to run. And the results are... fine. It does not match Fable in real use.
Task Coding tests (shaders, interactive scenes) on Fugu Ultra-high; each ~30 min.
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Harshith · on Fugu Ultra
My First Test with Sakana Fugu Ultra … SVG of Xbox Controller.
Task First test — generating an SVG of an Xbox controller.
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am.will · on Fugu Ultra
The game was pretty bad and notably worse than GPT 5.5. … GPT 5.5 by contrast did a pretty good job and required no follow ups.
Task Asked it to build a Three.js replica of Rocket League via Codex.
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Mark Santos · on Fugu Ultra
In terms of model speed and performance, Fugu on Opencode won … inverted directional turn, wonky camera, no sfx, not identical to Crossy Road game.
Task Head-to-head vs Claude Opus 4.8: a single-file Three.js Crossy Road game.
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elvis · on Fugu Ultra
OMG! Fugu Ultra is ridiculously good at these 3D renders.
Task Generating 3D renders.
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