MiMo-V2-Pro vs Qwen3.5 122B-A10B vs Grok 4.20 (Non-Reasoning)
Too close to call on our weighted score (Qwen3.5 122B-A10B 54, Grok 4.20 (Non-Reasoning) 52, MiMo-V2-Pro 42). The right pick depends on what you value most.
XiaomiMiMo-V2-Pro
42/100- ECI—
- Price$1.00 / $3.00
- Context1.05M
Alibaba (Qwen)Qwen3.5 122B-A10B
54/100- ECI—
- Price$0.40 / $3.20
- Context262K
xAIGrok 4.20 (Non-Reasoning)
52/100- ECI—
- Price$1.25 / $2.50
- Context1M
Too close to call
It is close. Our weighted score puts them within 2 points (Qwen3.5 122B-A10B 54/100, Grok 4.20 (Non-Reasoning) 52/100, MiMo-V2-Pro 42/100), so choose by what matters most for your work: Qwen3.5 122B-A10B on price and MiMo-V2-Pro for long inputs. 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 priceQwen3.5 122B-A10BQwen3.5 122B-A10B $1.10 · MiMo-V2-Pro $1.50 · Grok 4.20 (Non-Reasoning) $1.56 per 1M tokens (3:1 blend)
- Longest contextMiMo-V2-ProMiMo-V2-Pro 1,048,576 · Grok 4.20 (Non-Reasoning) 1,000,000 · Qwen3.5 122B-A10B 262,144 tokens
- Widest inputsQwen3.5 122B-A10B and Grok 4.20 (Non-Reasoning)MiMo-V2-Pro: Text · Qwen3.5 122B-A10B: Text, Images, Video · Grok 4.20 (Non-Reasoning): Text, Images, PDFs
- Self-hostingQwen3.5 122B-A10BPublishes downloadable weights
| Measure | Weight | MiMo-V2-Pro | Qwen3.5 122B-A10B | Grok 4.20 (Non-Reasoning) |
|---|---|---|---|---|
| Price | 50% | 40 | 46 | 39 |
| Inputs & features | 30% | 35 | 80 | 70 |
| Context window | 20% | 61 | 37 | 60 |
| Overall | 100% | 42/100 | 54/100 | 52/100 |
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-ProXiaomi | Qwen3.5 122B-A10BAlibaba (Qwen) | Grok 4.20 (Non-Reasoning)xAI |
|---|---|---|---|
| Capability | |||
| Capabilities Index (ECI) | — | — | — |
| ECI rank | — | — | — |
| Price per million tokens | |||
| Input | $1.00 | $0.40 (best) | $1.25 |
| Output | $3.00 | $3.20 | $2.50 (best) |
| Cached input | — | — | $0.20 |
| Blended (3:1) | $1.50 | $1.10 (best) | $1.56 |
| Long-context rate | Same rate | Same rate | Over 200K: $2.50 / $5.00 |
| Price source | Median of 1 providers | Official Alibaba API | Official xAI API |
| Limits | |||
| Context window | 1,048,576 tokens (best) | 262,144 tokens | 1,000,000 tokens |
| Max output | 131,072 tokens (best) | 65,536 tokens | 30,000 tokens |
| Inputs and features | |||
| Text | Yes | Yes | Yes |
| Images | No | Yes | Yes |
| PDFs | No | No | Yes |
| Audio | No | No | No |
| Video | No | Yes | No |
| Reasoning | Yes | Yes | No |
| Tool calling | Yes | Yes | Yes |
| Structured output | No | Yes | Yes |
| Availability | |||
| Weights | Proprietary | Open | Proprietary |
| API model ID | — | qwen3.5-122b-a10b | grok-4.20-0309-non-reasoning |
| API providers | 2 | 22 (best) | 13 |
| Released | Mar 18, 2026 | Feb 23, 2026 | Mar 9, 2026 |
| Knowledge cutoff | 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.
- MiMo-V2-Pro$16.00
- Qwen3.5 122B-A10B$10.40
- Grok 4.20 (Non-Reasoning)$17.50
Which should you choose?
Which is better: MiMo-V2-Pro, Qwen3.5 122B-A10B or Grok 4.20 (Non-Reasoning)?
It is close. Our weighted score puts them within 2 points (Qwen3.5 122B-A10B 54/100, Grok 4.20 (Non-Reasoning) 52/100, MiMo-V2-Pro 42/100), so choose by what matters most for your work: Qwen3.5 122B-A10B on price and MiMo-V2-Pro for long inputs. 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-Pro, Qwen3.5 122B-A10B or Grok 4.20 (Non-Reasoning)?
Qwen3.5 122B-A10B is cheaper at $0.40 input / $3.20 output per million tokens (official Alibaba API price). MiMo-V2-Pro costs $1.00 input / $3.00 output per million tokens (median across 1 API provider); Grok 4.20 (Non-Reasoning) costs $1.25 input / $2.50 output per million tokens (official xAI API price). At a typical mix of three input tokens to one output token, that is $1.10 per million tokens for Qwen3.5 122B-A10B versus $1.50 for MiMo-V2-Pro (1.4× as much) and $1.56 for Grok 4.20 (Non-Reasoning) (1.4× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers all three models yet. MiMo-V2-Pro has not been scored yet, Qwen3.5 122B-A10B has not been scored yet and Grok 4.20 (Non-Reasoning) has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for MiMo-V2-Pro, Qwen3.5 122B-A10B and Grok 4.20 (Non-Reasoning) yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. All three support tool calling for agent workflows.
Which has the bigger context window?
MiMo-V2-Pro has the largest context window at 1,048,576 tokens, against 1,000,000 for Grok 4.20 (Non-Reasoning) and 262,144 for Qwen3.5 122B-A10B. Maximum output per response: MiMo-V2-Pro up to 131,072, Qwen3.5 122B-A10B up to 65,536, Grok 4.20 (Non-Reasoning) up to 30,000 tokens.
Which can read images, PDFs, audio or video?
MiMo-V2-Pro accepts text; Qwen3.5 122B-A10B accepts text, images and video; Grok 4.20 (Non-Reasoning) accepts text, images and PDFs. Qwen3.5 122B-A10B handles the widest range of inputs.
Are any of these open source?
Qwen3.5 122B-A10B publishes its weights and can be self-hosted; MiMo-V2-Pro and Grok 4.20 (Non-Reasoning) is proprietary.
Which is newer?
MiMo-V2-Pro is the newest, released Mar 18, 2026. Grok 4.20 (Non-Reasoning) came out Mar 9, 2026; Qwen3.5 122B-A10B came out Feb 23, 2026. Knowledge cutoff: MiMo-V2-Pro 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 Nov 2, 2026.
