DiffusionGemma 26B A4B IT vs MiMo-V2.5-Pro-UltraSpeed
DiffusionGemma 26B A4B IT comes out ahead, 51 to 45 on our weighted score.
- Our pick
GoogleDiffusionGemma 26B A4B IT
51/100- ECI—
- Price—
- Context262K
XiaomiMiMo-V2.5-Pro-UltraSpeed
45/100- ECI—
- Price$1.30 / $2.61
- Context1.05M
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Make it a three-way comparison.
DiffusionGemma 26B A4B IT is our pick
DiffusionGemma 26B A4B IT is the better all-round choice, scoring 51/100 against MiMo-V2.5-Pro-UltraSpeed (45). It leads on inputs & features. MiMo-V2.5-Pro-UltraSpeed wins on context window. The score weighs inputs & features 60%, context window 40%. 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 per 1M tokens (3:1 blend) · DiffusionGemma 26B A4B IT unpriced
- Longest contextMiMo-V2.5-Pro-UltraSpeedMiMo-V2.5-Pro-UltraSpeed 1,048,576 · DiffusionGemma 26B A4B IT 262,144 tokens
- Widest inputsDiffusionGemma 26B A4B ITDiffusionGemma 26B A4B IT: Text, Images · MiMo-V2.5-Pro-UltraSpeed: Text
- Self-hostingAll open weightsEvery model here can be downloaded and run on your own hardware
| Measure | Weight | DiffusionGemma 26B A4B IT | MiMo-V2.5-Pro-UltraSpeed |
|---|---|---|---|
| Inputs & features | 60% | 60 | 35 |
| Context window | 40% | 37 | 61 |
| Overall | 100% | 51/100 | 45/100 |
Left out because at least one model lacks the data: capability and price. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | DiffusionGemma 26B A4B ITGoogle | MiMo-V2.5-Pro-UltraSpeedXiaomi |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | — | $1.30 |
| Output | — | $2.61 |
| Cached input | — | $0.011 |
| Blended (3:1) | — | $1.63 |
| Long-context rate | — | Same rate |
| Price source | — | Official Xiaomi API |
| Limits | ||
| Context window | 262,144 tokens | 1,048,576 tokens (best) |
| Max output | 32,768 tokens | 131,072 tokens (best) |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | No |
| PDFs | No | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Structured output | No | No |
| Availability | ||
| Weights | OpenApache 2.0 | Open |
| API model ID | — | mimo-v2.5-pro-ultraspeed |
| API providers | 1 | 1 |
| Released | Jun 9, 2026 | Jun 8, 2026 |
| Knowledge cutoff | Jan 2025 | Dec 2024 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- DiffusionGemma 26B A4B IT—
- MiMo-V2.5-Pro-UltraSpeed$18.27
Which should you choose?
Which is better: DiffusionGemma 26B A4B IT or MiMo-V2.5-Pro-UltraSpeed?
DiffusionGemma 26B A4B IT is the better all-round choice, scoring 51/100 against MiMo-V2.5-Pro-UltraSpeed (45). It leads on inputs & features. MiMo-V2.5-Pro-UltraSpeed wins on context window. The score weighs inputs & features 60%, context window 40%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, DiffusionGemma 26B A4B IT or MiMo-V2.5-Pro-UltraSpeed?
MiMo-V2.5-Pro-UltraSpeed is cheaper at $1.30 input / $2.61 output per million tokens (official Xiaomi API price). . 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 . DiffusionGemma 26B A4B IT has no published per-token price.
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. DiffusionGemma 26B A4B IT has not been scored yet and MiMo-V2.5-Pro-UltraSpeed has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for DiffusionGemma 26B A4B IT and MiMo-V2.5-Pro-UltraSpeed 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 262,144 for DiffusionGemma 26B A4B IT. Maximum output per response: DiffusionGemma 26B A4B IT up to 32,768, MiMo-V2.5-Pro-UltraSpeed up to 131,072 tokens.
Which can read images, PDFs, audio or video?
DiffusionGemma 26B A4B IT accepts text and images; MiMo-V2.5-Pro-UltraSpeed accepts text. DiffusionGemma 26B A4B IT handles the widest range of inputs.
Are any of these open source?
Yes, both publish their weights (Apache 2.0), so you can self-host them.
Which is newer?
DiffusionGemma 26B A4B IT is the newest, released Jun 9, 2026. MiMo-V2.5-Pro-UltraSpeed came out Jun 8, 2026. Knowledge cutoff: DiffusionGemma 26B A4B IT Jan 2025, 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.
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