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Comparison · 2 models · Updated Oct 4, 2026

MiMo-V2.5-Pro-UltraSpeed vs Qwen3.8 Max Preview

Qwen3.8 Max Preview comes out ahead, 47 to 43 on our weighted score, though MiMo-V2.5-Pro-UltraSpeed is 46% cheaper per token.

  1. Xiaomi

    MiMo-V2.5-Pro-UltraSpeed

    Released Jun 8, 2026Beta

    43/100
    • ECI—
    • Price$1.30 / $2.61
    • Context1.05M
  2. Our pick

    Alibaba (Qwen)

    Qwen3.8 Max Preview

    Released Jul 19, 2026

    47/100
    • ECI—
    • Price$2.00 / $6.00
    • Context1M
  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Qwen3.8 Max Preview is our pick

Qwen3.8 Max Preview is the better all-round choice, scoring 47/100 against MiMo-V2.5-Pro-UltraSpeed (43). It leads on inputs & features. MiMo-V2.5-Pro-UltraSpeed wins on price. 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 priceMiMo-V2.5-Pro-UltraSpeedMiMo-V2.5-Pro-UltraSpeed $1.63 · Qwen3.8 Max Preview $3.00 per 1M tokens (3:1 blend)
  • Longest contextMiMo-V2.5-Pro-UltraSpeedMiMo-V2.5-Pro-UltraSpeed 1,048,576 · Qwen3.8 Max Preview 1,000,000 tokens
  • Widest inputsQwen3.8 Max PreviewMiMo-V2.5-Pro-UltraSpeed: Text · Qwen3.8 Max Preview: Text, Images, Video
  • Self-hostingMiMo-V2.5-Pro-UltraSpeedPublishes downloadable weights
How the score is built
MeasureWeightMiMo-V2.5-Pro-UltraSpeedQwen3.8 Max Preview
Price50%4027
Inputs & features30%3570
Context window20%6160
Overall100%43/10047/100

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.

MiMo-V2.5-Pro-UltraSpeed vs Qwen3.8 Max Preview specifications side by side
SpecificationMiMo-V2.5-Pro-UltraSpeedXiaomiQwen3.8 Max PreviewAlibaba (Qwen)
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$1.30 (best)$2.00
Output$2.61 (best)$6.00
Cached input$0.011—
Blended (3:1)$1.63 (best)$3.00
Long-context rateSame rateSame rate
Price sourceOfficial Xiaomi APIMedian of 6 providers
Limits
Context window1,048,576 tokens (best)1,000,000 tokens
Max output131,072 tokens131,072 tokens
Inputs and features
TextYesYes
ImagesNoYes
PDFsNoNo
AudioNoNo
VideoNoYes
ReasoningYesYes
Tool callingYesYes
Structured outputNoNo
Availability
WeightsOpenProprietary
API model IDmimo-v2.5-pro-ultraspeed—
API providers16 (best)
ReleasedJun 8, 2026Jul 19, 2026
Knowledge cutoffDec 2024—
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.

  • MiMo-V2.5-Pro-UltraSpeed$18.27
  • Qwen3.8 Max Preview$32.00
04 — Questions

Which should you choose?

Which is better: MiMo-V2.5-Pro-UltraSpeed or Qwen3.8 Max Preview?

Qwen3.8 Max Preview is the better all-round choice, scoring 47/100 against MiMo-V2.5-Pro-UltraSpeed (43). It leads on inputs & features. MiMo-V2.5-Pro-UltraSpeed wins on price. 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, MiMo-V2.5-Pro-UltraSpeed or Qwen3.8 Max Preview?

MiMo-V2.5-Pro-UltraSpeed is cheaper at $1.30 input / $2.61 output per million tokens (official Xiaomi API price). Qwen3.8 Max Preview costs $2.00 input / $6.00 output per million tokens (median across 6 API providers). At a typical mix of three input tokens to one output token, that is $1.63 per million tokens for MiMo-V2.5-Pro-UltraSpeed versus $3.00 for Qwen3.8 Max Preview (1.8× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. MiMo-V2.5-Pro-UltraSpeed has not been scored yet and Qwen3.8 Max Preview has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for MiMo-V2.5-Pro-UltraSpeed and Qwen3.8 Max Preview 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?

MiMo-V2.5-Pro-UltraSpeed has the largest context window at 1,048,576 tokens, against 1,000,000 for Qwen3.8 Max Preview. Maximum output per response: MiMo-V2.5-Pro-UltraSpeed up to 131,072, Qwen3.8 Max Preview up to 131,072 tokens.

Which can read images, PDFs, audio or video?

MiMo-V2.5-Pro-UltraSpeed accepts text; Qwen3.8 Max Preview accepts text, images and video. Qwen3.8 Max Preview handles the widest range of inputs.

Are any of these open source?

MiMo-V2.5-Pro-UltraSpeed publishes its weights and can be self-hosted; Qwen3.8 Max Preview is proprietary.

Which is newer?

Qwen3.8 Max Preview is the newest, released Jul 19, 2026. MiMo-V2.5-Pro-UltraSpeed came out Jun 8, 2026. Knowledge cutoff: MiMo-V2.5-Pro-UltraSpeed Dec 2024.

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.