ZMIME
Comparison · 2 models · Updated Oct 4, 2026

Fugu Ultra vs Qwen 3.8 Max Prime

Qwen 3.8 Max Prime comes out ahead, 42 to 33 on our weighted score, and it is the cheaper option too.

  1. Sakana AI

    Fugu Ultra

    Released Jun 15, 2026

    33/100
    • ECI—
    • Price$5.00 / $30.00
    • Context1M
  2. Our pick

    Alibaba (Qwen)

    Qwen 3.8 Max Prime

    Released Sep 23, 2026

    42/100
    • ECI—
    • Price$4.00 / $12.00
    • Context1M
  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Qwen 3.8 Max Prime is our pick

Qwen 3.8 Max Prime is the better all-round choice, scoring 42/100 against Fugu Ultra (33). It leads on price and inputs & features. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

  • CapabilityNot enough dataNo independent benchmark covers every model here yet
  • Lowest priceQwen 3.8 Max PrimeQwen 3.8 Max Prime $6.00 · Fugu Ultra $11.25 per 1M tokens (3:1 blend)
  • Longest contextAbout the sameFugu Ultra 1,000,000 · Qwen 3.8 Max Prime 1,000,000 tokens
  • Widest inputsQwen 3.8 Max PrimeFugu Ultra: Text, Images · Qwen 3.8 Max Prime: Text, Images, Video
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightFugu UltraQwen 3.8 Max Prime
Price50%013
Inputs & features30%7080
Context window20%6060
Overall100%33/10042/100

Left out because at least one model lacks the data: capability. The remaining weights were rescaled.

02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Fugu Ultra vs Qwen 3.8 Max Prime specifications side by side
SpecificationFugu UltraSakana AIQwen 3.8 Max PrimeAlibaba (Qwen)
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$5.00$4.00 (best)
Output$30.00$12.00 (best)
Cached input$0.50—
Blended (3:1)$11.25$6.00 (best)
Long-context rateOver 272K: $10.00 / $45.00Same rate
Price sourceOfficial Sakana AI APIMedian of 4 providers
Limits
Context window1,000,000 tokens1,000,000 tokens
Max output—131,072 tokens
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoNo
AudioNoNo
VideoNoYes
ReasoningYeshigh · xhighYes
Tool callingYesYes
Structured outputYesYes
Availability
WeightsProprietaryProprietary
API model IDfugu-ultra—
API providers11 (best)4
ReleasedJun 15, 2026Sep 23, 2026
Knowledge cutoff——
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Fugu Ultra$110.00
  • Qwen 3.8 Max Prime$64.00
04 — Questions

Which should you choose?

Which is better: Fugu Ultra or Qwen 3.8 Max Prime?

Qwen 3.8 Max Prime is the better all-round choice, scoring 42/100 against Fugu Ultra (33). It leads on price and inputs & features. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, Fugu Ultra or Qwen 3.8 Max Prime?

Qwen 3.8 Max Prime is cheaper at $4.00 input / $12.00 output per million tokens (median across 4 API providers). Fugu Ultra costs $5.00 input / $30.00 output per million tokens (official Sakana AI API price). At a typical mix of three input tokens to one output token, that is $6.00 per million tokens for Qwen 3.8 Max Prime versus $11.25 for Fugu Ultra (1.9× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Fugu Ultra has not been scored yet and Qwen 3.8 Max Prime has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Fugu Ultra and Qwen 3.8 Max Prime yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.

Which has the bigger context window?

Fugu Ultra and Qwen 3.8 Max Prime share the same 1,000,000-token context window. Maximum output per response: Qwen 3.8 Max Prime up to 131,072 tokens.

Which can read images, PDFs, audio or video?

Fugu Ultra accepts text and images; Qwen 3.8 Max Prime accepts text, images and video. Qwen 3.8 Max Prime handles the widest range of inputs.

Are any of these open source?

No. Fugu Ultra and Qwen 3.8 Max Prime are proprietary and only available through APIs and apps.

Which is newer?

Qwen 3.8 Max Prime is the newest, released Sep 23, 2026. Fugu Ultra came out Jun 15, 2026.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.