MiMo-V2.6-Pro vs Viv Fast
Viv Fast comes out ahead, 75 to 67 on our weighted score, and it is the cheaper option too.
XiaomiMiMo-V2.6-Pro
67/100- ECI—
- Price$0.435 / $0.87
- Context1.05M
- Our pick
VivgridViv Fast
75/100- ECI—
- Price$0.13 / $0.40
- Context1M
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Make it a three-way comparison.
Viv Fast is our pick
Viv Fast is the better all-round choice, scoring 75/100 against MiMo-V2.6-Pro (67). It leads on price. MiMo-V2.6-Pro 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 · MiMo-V2.6-Pro $0.544 per 1M tokens (3:1 blend)
- Longest contextMiMo-V2.6-ProMiMo-V2.6-Pro 1,048,576 · Viv Fast 1,000,000 tokens
- Widest inputsMiMo-V2.6-ProMiMo-V2.6-Pro: Text, Images, Audio, Video · Viv Fast: Text, Images
- Self-hostingMiMo-V2.6-ProPublishes downloadable weights
| Measure | Weight | MiMo-V2.6-Pro | Viv Fast |
|---|---|---|---|
| Price | 50% | 62 | 83 |
| Inputs & features | 30% | 80 | 70 |
| Context window | 20% | 61 | 60 |
| Overall | 100% | 67/100 | 75/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | MiMo-V2.6-ProXiaomi | Viv FastVivgrid |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $0.435 | $0.13 (best) |
| Output | $0.87 | $0.40 (best) |
| Cached input | $0.0036 (best) | $0.05 |
| Blended (3:1) | $0.544 | $0.198 (best) |
| Long-context rate | Same rate | Same rate |
| Price source | Official Xiaomi API | Official Vivgrid API |
| Limits | ||
| Context window | 1,048,576 tokens (best) | 1,000,000 tokens |
| Max output | 131,072 tokens | 256,000 tokens (best) |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | Yes | Yes |
| PDFs | No | No |
| Audio | Yes | No |
| Video | Yes | No |
| Reasoning | Yes | Yeslow · high · max |
| Tool calling | Yes | Yes |
| Structured output | No | Yes |
| Availability | ||
| Weights | Open | Proprietary |
| API model ID | mimo-v2.6-pro | viv-fast |
| API providers | 16 (best) | 1 |
| Released | Sep 22, 2026 | Sep 21, 2026 |
| Knowledge cutoff | — | Sep 2026 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- MiMo-V2.6-Pro$6.09
- Viv Fast$2.10
Which should you choose?
Which is better: MiMo-V2.6-Pro or Viv Fast?
Viv Fast is the better all-round choice, scoring 75/100 against MiMo-V2.6-Pro (67). It leads on price. MiMo-V2.6-Pro 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, MiMo-V2.6-Pro or Viv Fast?
Viv Fast is cheaper at $0.13 input / $0.40 output per million tokens (official Vivgrid API price). MiMo-V2.6-Pro costs $0.435 input / $0.87 output per million tokens (official Xiaomi API price). At a typical mix of three input tokens to one output token, that is $0.198 per million tokens for Viv Fast versus $0.544 for MiMo-V2.6-Pro (2.8× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. MiMo-V2.6-Pro 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 MiMo-V2.6-Pro 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?
MiMo-V2.6-Pro has the largest context window at 1,048,576 tokens, against 1,000,000 for Viv Fast. Maximum output per response: MiMo-V2.6-Pro up to 131,072, Viv Fast up to 256,000 tokens.
Which can read images, PDFs, audio or video?
MiMo-V2.6-Pro accepts text, images, audio and video; Viv Fast accepts text and images. MiMo-V2.6-Pro handles the widest range of inputs.
Are any of these open source?
MiMo-V2.6-Pro publishes its weights and can be self-hosted; Viv Fast is proprietary.
Which is newer?
MiMo-V2.6-Pro is the newest, released Sep 22, 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.
