ZMIME
Comparison · 2 models · Updated Oct 4, 2026

MiniMax-M2.5-highspeed vs Step 5 Preview

Step 5 Preview comes out ahead, 57 to 41 on our weighted score, though MiniMax-M2.5-highspeed is 26% cheaper per token.

  1. MiniMax

    MiniMax-M2.5-highspeed

    Released Feb 13, 2026

    41/100
    • ECI—
    • Price$0.60 / $2.40
    • Context205K
  2. Our pick

    StepFun

    Step 5 Preview

    Released Sep 16, 2026

    57/100
    • ECI—
    • Price$1.00 / $2.70
    • Context1M
  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Step 5 Preview is our pick

Step 5 Preview is the better all-round choice, scoring 57/100 against MiniMax-M2.5-highspeed (41). It leads on inputs & features and context window. MiniMax-M2.5-highspeed 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 priceMiniMax-M2.5-highspeedMiniMax-M2.5-highspeed $1.05 · Step 5 Preview $1.43 per 1M tokens (3:1 blend)
  • Longest contextStep 5 PreviewStep 5 Preview 1,000,000 · MiniMax-M2.5-highspeed 204,800 tokens
  • Widest inputsStep 5 PreviewMiniMax-M2.5-highspeed: Text · Step 5 Preview: Text, Images, Video
  • Self-hostingMiniMax-M2.5-highspeedPublishes downloadable weights
How the score is built
MeasureWeightMiniMax-M2.5-highspeedStep 5 Preview
Price50%4943
Inputs & features30%3580
Context window20%3260
Overall100%41/10057/100

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.

MiniMax-M2.5-highspeed vs Step 5 Preview specifications side by side
SpecificationMiniMax-M2.5-highspeedMiniMaxStep 5 PreviewStepFun
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$0.60 (best)$1.00
Output$2.40 (best)$2.70
Cached input$0.06$0.05 (best)
Blended (3:1)$1.05 (best)$1.43
Long-context rateSame rateSame rate
Price sourceOfficial MiniMax (minimax.io) APIOfficial StepFun (Global) API
Limits
Context window204,800 tokens1,000,000 tokens (best)
Max output131,072 tokens1,000,000 tokens (best)
Inputs and features
TextYesYes
ImagesNoYes
PDFsNoNo
AudioNoNo
VideoNoYes
ReasoningYesYeslow · medium · high
Tool callingYesYes
Structured outputNoYes
Availability
WeightsOpenProprietary
API model IDMiniMax-M2.5-highspeedstep-5-preview
API providers77
ReleasedFeb 13, 2026Sep 16, 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.

  • MiniMax-M2.5-highspeed$10.80
  • Step 5 Preview$15.40
04 — Questions

Which should you choose?

Which is better: MiniMax-M2.5-highspeed or Step 5 Preview?

Step 5 Preview is the better all-round choice, scoring 57/100 against MiniMax-M2.5-highspeed (41). It leads on inputs & features and context window. MiniMax-M2.5-highspeed 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, MiniMax-M2.5-highspeed or Step 5 Preview?

MiniMax-M2.5-highspeed is cheaper at $0.60 input / $2.40 output per million tokens (official MiniMax (minimax.io) API price). Step 5 Preview costs $1.00 input / $2.70 output per million tokens (official StepFun (Global) API price). At a typical mix of three input tokens to one output token, that is $1.05 per million tokens for MiniMax-M2.5-highspeed versus $1.43 for Step 5 Preview (1.4× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. MiniMax-M2.5-highspeed has not been scored yet and Step 5 Preview has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for MiniMax-M2.5-highspeed and Step 5 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?

Step 5 Preview has the largest context window at 1,000,000 tokens, against 204,800 for MiniMax-M2.5-highspeed. Maximum output per response: MiniMax-M2.5-highspeed up to 131,072, Step 5 Preview up to 1,000,000 tokens.

Which can read images, PDFs, audio or video?

MiniMax-M2.5-highspeed accepts text; Step 5 Preview accepts text, images and video. Step 5 Preview handles the widest range of inputs.

Are any of these open source?

MiniMax-M2.5-highspeed publishes its weights and can be self-hosted; Step 5 Preview is proprietary.

Which is newer?

Step 5 Preview is the newest, released Sep 16, 2026. MiniMax-M2.5-highspeed came out Feb 13, 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.