StepFun Step 3.5 Flash vs Xiaomi MiMo-V2.6-Flash
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- Step 3.5 Flash is 1.2× cheaper at a typical mix of 3 input tokens per output token.
- MiMo-V2.6-Flash accepts longer prompts: 1M vs 262K tokens.
- MiMo-V2.6-Flash is the newer model (released 2026-09-21).
| Step 3.5 Flash | MiMo-V2.6-Flash | |
|---|---|---|
| Vendor | StepFun | Xiaomi |
| Released | 2026-01-29 | 2026-09-21 |
| Input / 1M | $0.10 | $0.14 |
| Output / 1M | $0.30 | $0.28 |
| Cached input / 1M | — | $0.0028 |
| Blended / 1M (3:1) | $0.15 | $0.175 |
| Context | 262K | 1M |
| Max output | 66K | 131K |
| Accepts | text | text, image, audio, video |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 1 | 10 |
| Cheapest provider, output | $0.30 | $0.238 |
| Best provider uptime, 24 h | 99.65% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | — | — |
Cost calculator
Step 3.5 Flash
$10.50 per month$0.35 per day
MiMo-V2.6-Flash
$12.60 per month$0.42 per day
Step 3.5 Flash saves $2.10 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
Compare Step 3.5 Flash with
Compare MiMo-V2.6-Flash with