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Comparison · 2 models · Updated Oct 4, 2026

Qwen 3.8 Max Prime vs Viv Fast

Viv Fast comes out ahead, 75 to 42 on our weighted score, and it is the cheaper option too.

  1. Alibaba (Qwen)

    Qwen 3.8 Max Prime

    Released Sep 23, 2026

    42/100
    • ECI—
    • Price$4.00 / $12.00
    • Context1M
    Full specs Remove Qwen 3.8 Max Prime
  2. Our pick

    Vivgrid

    Viv Fast

    Released Sep 21, 2026

    75/100
    • ECI—
    • Price$0.13 / $0.40
    • Context1M
    Full specs Remove Viv Fast

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01 — Verdict

Viv Fast is our pick

Viv Fast is the better all-round choice, scoring 75/100 against Qwen 3.8 Max Prime (42). It leads on price. Qwen 3.8 Max Prime wins on 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 priceViv FastViv Fast $0.198 · Qwen 3.8 Max Prime $6.00 per 1M tokens (3:1 blend)
  • Longest contextAbout the sameQwen 3.8 Max Prime 1,000,000 · Viv Fast 1,000,000 tokens
  • Widest inputsQwen 3.8 Max PrimeQwen 3.8 Max Prime: Text, Images, Video · Viv Fast: Text, Images
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightQwen 3.8 Max PrimeViv Fast
Price50%1383
Inputs & features30%8070
Context window20%6060
Overall100%42/10075/100

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.

Qwen 3.8 Max Prime vs Viv Fast specifications side by side
SpecificationQwen 3.8 Max PrimeAlibaba (Qwen)Viv FastVivgrid
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$4.00$0.13 (best)
Output$12.00$0.40 (best)
Cached input—$0.05
Blended (3:1)$6.00$0.198 (best)
Long-context rateSame rateSame rate
Price sourceMedian of 4 providersOfficial Vivgrid API
Limits
Context window1,000,000 tokens1,000,000 tokens
Max output131,072 tokens256,000 tokens (best)
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoNo
AudioNoNo
VideoYesNo
ReasoningYesYeslow · high · max
Tool callingYesYes
Structured outputYesYes
Availability
WeightsProprietaryProprietary
API model ID—viv-fast
API providers4 (best)1
ReleasedSep 23, 2026Sep 21, 2026
Knowledge cutoff—Sep 2026
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.

  • Qwen 3.8 Max Prime$64.00
  • Viv Fast$2.10
04 — Questions

Which should you choose?

Which is better: Qwen 3.8 Max Prime or Viv Fast?

Viv Fast is the better all-round choice, scoring 75/100 against Qwen 3.8 Max Prime (42). It leads on price. Qwen 3.8 Max Prime wins on 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, Qwen 3.8 Max Prime or Viv Fast?

Viv Fast is cheaper at $0.13 input / $0.40 output per million tokens (official Vivgrid API price). Qwen 3.8 Max Prime costs $4.00 input / $12.00 output per million tokens (median across 4 API providers). At a typical mix of three input tokens to one output token, that is $0.198 per million tokens for Viv Fast versus $6.00 for Qwen 3.8 Max Prime (30× as much).

Which scores higher on benchmarks?

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

Which is better for coding?

There are no published SWE-bench Verified results for Qwen 3.8 Max Prime and Viv Fast 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?

Qwen 3.8 Max Prime and Viv Fast share the same 1,000,000-token context window. Maximum output per response: Qwen 3.8 Max Prime up to 131,072, Viv Fast up to 256,000 tokens.

Which can read images, PDFs, audio or video?

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

Are any of these open source?

No. Qwen 3.8 Max Prime and Viv Fast are proprietary and only available through APIs and apps.

Which is newer?

Qwen 3.8 Max Prime is the newest, released Sep 23, 2026. Viv Fast came out Sep 21, 2026. Knowledge cutoff: Viv Fast Sep 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.

05 — Keep comparing

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