Real head-to-head · same prompt, one shot

Fugu Ultra vs Qwen 3.7

Sakana's multi-agent answer to Fusion — frontier ensemble without single-vendor risk. vs Multilingual open-weights — strong on Chinese reasoning.

Head-to-head verdict: Fugu Ultra wins 2–1.

Fugu Ultra · context272K tokens (free) · larger via paid tier
Qwen 3.7 · context256K tokens
Fugu Ultra · price$5 / 1M input · $30 / 1M output (Fugu Ultra)
Qwen 3.7 · priceOpen weights · free for individuals
Fugu Ultra · vendorSakana AI
Qwen 3.7 · vendorAlibaba

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 Ultra and Qwen 3.7, side by side, on 3 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 Ultra · Dispatched from Agent OS as the panel-ensemble alternative to OpenRouter Fusion. Bench scored by Claude judge against the same 42 prompts as every other model.

Qwen 3.7 · Wired alongside GLM-5.2 in Agent OS for open-weights agent loops where you want vendor diversity.

Side-by-side on 7 shared tasks

Click any cell to play that model's actual one-shot attempt. Medals are derived from my 0–10 scores per task (highest = 🥇, second = 🥈, third = 🥉).

Task ↓
Fugu Ultra
Qwen 3.7
Page
🥇Fugu Ultra on Landing
Qwen 3.7 on Landing
Sim
🥈Fugu Ultra on Orbit
Qwen 3.7 on Orbit
Visual
Fugu Ultra on Voxel
Qwen 3.7 on Voxel
Game
— not attempted —
🥉Qwen 3.7 on Arcade
Game
🥇Fugu Ultra on Raycaster
— not attempted —
Sim
— not attempted —
Sim
🥇Fugu Ultra on Galaxy
— not attempted —

Where Fugu Ultra beat Qwen 3.7

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

Landing Page
Fugu Ultra 9.0 · Qwen 3.7 8.0 (+1.0) · winner · denser build

What I saw: Sakana Fugu Ultra shipped a 32KB Apple-keynote landing — bigger than Fusion's 20KB attempt at the same prompt. Animated mesh gradient, multi-section, polished. $0.32 vs Fusion's $1.30 for the same output — 4× cheaper, denser result.

Orbit Sim
Fugu Ultra 8.5 · Qwen 3.7 7.5 (+1.0)

What I saw: 26KB inner-solar-system orbit map with a glassmorphic info panel, kicker badge, blurred backdrop, hover cards. Cleaner UI than Fusion's same-task attempt — beats it on polish.

Where Qwen 3.7 beat Fugu Ultra

The tasks where I gave Qwen 3.7 a higher 0–10 score on the same prompt — with the actual commentary from my source guides.

Voxel Visual
Qwen 3.7 7.0 · Fugu Ultra 3.5 (+3.5)

What I saw: GLM built the densest, most colourful city (windowed skyscrapers + speed/coins HUD). Opus ran the furthest with the cleanest motion. Qwen's is atmospheric — a foggy tunnel of buildings — but more muted and it crashes quicker.

Strengths & weaknesses I logged

Fugu Ultra

Strengths

  • SWE Bench Pro 73.7 · GPQA-D 95.5 · MRCRv2 93.6 — Sakana's published frontier-tier benchmark scores
  • Vendor-agnostic ensemble — opt out of specific providers for compliance / export-control
  • OpenAI-compatible API at api.sakana.ai — drop-in for existing tooling

Trade-offs

  • Panel orchestration adds latency — even a 'pong' burns ~2k orchestration tokens
  • Newer than Fusion; less community calibration on long-tail prompts

Qwen 3.7

Strengths

  • Open weights, free for individuals — same model class as GLM-5.2
  • Best-of-three on fluid simulation in the Goldie Bench bench
  • Multilingual depth — Chinese reasoning especially strong

Trade-offs

  • Only 5 tasks scored on the bench so far — small sample size
  • Trails GLM-5.2 on cinematic visual builds at similar pricing

Pricing & context — the spec sheet

Spec Fugu Ultra Qwen 3.7
VendorSakana AIAlibaba
Context window272,000 tokens with the standard rate. Calls exceeding 272K context are billed at the higher 'long-context' rates.256,000 tokens
Price$5 / 1M input · $30 / 1M output (Fugu Ultra)Open weights · free for individuals
Pricing detailSakana's multi-agent orchestration: a single API call internally dispatches to multiple frontier models and synthesises the answer. Subscription plans run $20-$200/mo (Standard / Pro / Max); PAYG is $5/M input + $30/M output for Fugu Ultra. Direct competitor to OpenRouter Fusion's panel approach.Alibaba's open-weights release — downloadable from Hugging Face, runnable locally or via Alibaba Cloud's free tier for individuals.
Release2026-06-152026-06
Bench coverage5/5 scored · avg 7.60/105/5 scored · avg 7.50/10

The verdict — which should you pick?

Across 3 scored shared tasks, Qwen 3.7 averaged 7.50/10, beating Fugu Ultra's 7.00/10 by 0.50 points. Pick Qwen 3.7 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 Ultra and Qwen 3.7 both into the Agent Operating System and dispatch each from the kanban by task type — teams that want fusion-class quality but need a different vendor risk profile → Fugu Ultra, open-weights alternative to glm-5.2 when you want a different model family → Qwen 3.7. That's the same setup I run for the 3,600+ founders inside the AI Profit Boardroom.

FAQ — Fugu Ultra vs Qwen 3.7

Which is better, Fugu Ultra or Qwen 3.7?

On Goldie Bench, Fugu Ultra averages 7.00/10 across the shared tasks, with 3 gold, 1 silver, 0 bronze overall. Qwen 3.7 averages 7.50/10, with 0 gold, 0 silver, 1 bronze. Fugu Ultra wins the head-to-head 2–1.

How much does Fugu Ultra cost vs Qwen 3.7?

Fugu Ultra: Sakana's multi-agent orchestration: a single API call internally dispatches to multiple frontier models and synthesises the answer. Subscription plans run $20-$200/mo (Standard / Pro / Max); PAYG is $5/M input + $30/M output for Fugu Ultra. Direct competitor to OpenRouter Fusion's panel approach. Qwen 3.7: Alibaba's open-weights release — downloadable from Hugging Face, runnable locally or via Alibaba Cloud's free tier for individuals.

What's the context window for Fugu Ultra vs Qwen 3.7?

Fugu Ultra has a 272,000 tokens with the standard rate. Calls exceeding 272K context are billed at the higher 'long-context' rates. context window. Qwen 3.7 has a 256,000 tokens context window.

When should I pick Fugu Ultra over Qwen 3.7?

Pick Fugu Ultra for: Teams that want Fusion-class quality but need a different vendor risk profile; Operators avoiding export-controlled providers (Sakana emphasises this in their pitch); Deep-research workflows where ensemble verdicts beat single-model answers. The trade-off is the weaknesses we logged on the bench: Panel orchestration adds latency — even a 'pong' burns ~2k orchestration tokens; Newer than Fusion; less community calibration on long-tail prompts.

When should I pick Qwen 3.7 over Fugu Ultra?

Pick Qwen 3.7 for: Open-weights alternative to GLM-5.2 when you want a different model family; Multilingual workloads (Chinese, multi-script content); Fluid and particle simulations. The trade-off is the weaknesses we logged on the bench: Only 5 tasks scored on the bench so far — small sample size; Trails GLM-5.2 on cinematic visual builds at similar pricing.

How does Goldie Bench score Fugu Ultra vs Qwen 3.7?

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.

The same stack Julian uses

Run this stack yourself.

Every demo on this bench was built inside the Agent Operating System — one prompt, one shot, single HTML file out. The Agent OS, the prompts, the templates, the weekly walkthroughs and 3,600+ founders shipping with it every day all live inside the AI Profit Boardroom.

3,600+founders
258documented wins
38countries
$100k+/mocommunity MRR