Fugu Mini vs Gemini 3.6 Flash

What I tested — same prompt, two models

I run the same fixed prompt set through every new model the day it drops — same string, one shot, single HTML file out — and I score the result 0–10 on whether it ran, how close it hit the brief, and how good it looked. Below is what came out when I gave the exact same prompts to Fugu Mini and Gemini 3.6 Flash, side by side, on 37 shared tasks inside the Agent Operating System.

Both models were given identical prompts inside the Agent Operating System — no help, no iteration, no "best of N" tricks. I run each prompt once, save the HTML file the model produces, and score it 0–10 on whether it ran, how close it hit the brief, and how good it looked. The scoring is mine. The verdicts below are pulled from my source comparison guides at agentos.guide where I publish every score and the reasoning behind it.

Fugu Mini · Dispatched from Agent OS as the fast Sakana lane. Bench scored by Claude judge against the same 42 prompts.

Gemini 3.6 Flash · Benched via the native Gemini API on launch day. Game tasks use the skill-infused threejs-game-director prompt (same as the rest of the field) and are judged on a real mid-play frame by the same Opus vision judge.

Where Fugu Mini beat Gemini 3.6 Flash

The tasks where I gave Fugu Mini a higher 0–10 score on the same prompt — with the actual commentary from my source guides.

Where Gemini 3.6 Flash beat Fugu Mini

The tasks where I gave Gemini 3.6 Flash a higher 0–10 score on the same prompt — with the actual commentary from my source guides.

Strengths & weaknesses I logged

Pricing & context — the spec sheet

The verdict — which should you pick?

Across 36 scored shared tasks, Fugu Mini averaged 7.75/10, beating Gemini 3.6 Flash's 6.94/10 by 0.81 points. Pick Fugu Mini when the build has to ship on the first prompt and you can afford the trade-offs in the comparison below.

If you only run one of these inside your stack, the head-to-head average above is the call. If you can run both, my honest play is to wire Fugu Mini and Gemini 3.6 Flash both into the Agent Operating System and dispatch each from the kanban by task type — agent loops where latency matters more than panel consensus → Fugu Mini, high-volume agentic work where token cost dominates → Gemini 3.6 Flash. That's the same setup I run for the 4,000+ founders inside the AI Profit Boardroom.

FAQ — Fugu Mini vs Gemini 3.6 Flash

Which is better, Fugu Mini or Gemini 3.6 Flash?

On Goldie Bench, Fugu Mini averages 7.75/10 across the shared tasks, with 2 gold, 0 silver, 2 bronze overall. Gemini 3.6 Flash averages 6.94/10, with 2 gold, 3 silver, 2 bronze. Fugu Mini wins the head-to-head 20–16.

How much does Fugu Mini cost vs Gemini 3.6 Flash?

Fugu Mini: The non-Ultra `fugu` model on Sakana's API. Sakana describes it as 'Fast mini model optimized for low latency yet high quality responses.' Crucially: zero orchestration tokens per call (vs Ultra's panel of thousands). Returns in ~3 min instead of 6-15 min and doesn't time out on heavy prompts. Gemini 3.6 Flash: Launched 2026-07-21 alongside Gemini 3.5 Flash-Lite and 3.5 Flash Cyber. Google's pitch: higher intelligence than its predecessors on coding/ML/knowledge tasks while using 17% fewer output tokens, at a new lower price ($1.50 per million input tokens). Benched here via the native Gemini API on launch day.

What's the context window for Fugu Mini vs Gemini 3.6 Flash?

Fugu Mini has a Single-model variant of Sakana's Fugu — no panel orchestration. Same API endpoint, much faster per call. context window. Gemini 3.6 Flash has a 1,000,000-token context window context window.

When should I pick Fugu Mini over Gemini 3.6 Flash?

Pick Fugu Mini for: Agent loops where latency matters more than panel consensus; Quick first-drafts you'll refine downstream; Filling out a bench when Ultra is timing out. The trade-off is the weaknesses we logged on the bench: Single model only — no ensemble verdict; Newer than Ultra — less calibration / verification.

When should I pick Gemini 3.6 Flash over Fugu Mini?

Pick Gemini 3.6 Flash for: High-volume agentic work where token cost dominates; Fast prototype builds you iterate on rather than one-shot masterpieces; Routing the everyday 90% while a flagship handles the hard 10%. The trade-off is the weaknesses we logged on the bench: Benched on launch day — partial run until the full 50-task batch completes; Flash tier, not a flagship — up against Pro/flagship-class models on this board.

How does Goldie Bench score Fugu Mini vs Gemini 3.6 Flash?

Every demo on this page was built by Julian Goldie inside the Agent Operating System — same fixed prompt for both models, one shot, single HTML file out. Each result gets a 0–10 score on whether it ran, how close it hit the brief, and how good it looked. The highest score on each task gets gold; second gets silver; third gets bronze. See methodology for full provenance.

Related comparisons

Other head-to-heads using the same scoring system:

Full model pages: Fugu Mini · Gemini 3.6 Flash · back to the leaderboard