Grok-4 Fast Non-Reasoning vs MiMo-V2.6-Pro
Comparing Grok-4 Fast Non-Reasoning and MiMo-V2.6-Pro across benchmarks, pricing, and capabilities.
xAI · Xiaomi · Updated for 2026
Which is better?
Grok-4 Fast Non-Reasoning and MiMo-V2.6-Pro trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
On price, Grok-4 Fast Non-Reasoning is roughly 2.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Grok-4 Fast Non-Reasoning also accepts a larger context window (2,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Grok-4 Fast Non-Reasoning
- cost matters — it's about 2.0x cheaper per token
- you process long inputs — it offers a 2,000,000 token context window
Choose MiMo-V2.6-Pro
- you want the most recent training data — it shipped Sep 2026
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Individual benchmarks
0 reported for Grok-4 Fast Non-Reasoning · 18 for MiMo-V2.6-Pro
Grok-4 Fast Non-Reasoning and MiMo-V2.6-Prodon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Grok-4 Fast Non-Reasoning ($0.20/1M tokens) is 2.2x cheaper than MiMo-V2.6-Pro ($0.43/1M tokens).
For output processing, Grok-4 Fast Non-Reasoning ($0.50/1M tokens) is 1.7x cheaper than MiMo-V2.6-Pro ($0.87/1M tokens).
In conclusion, MiMo-V2.6-Pro is more expensive than Grok-4 Fast Non-Reasoning.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Grok-4 Fast Non-Reasoning accepts 2,000,000 input tokens compared to MiMo-V2.6-Pro's 1,048,576 tokens. Only Grok-4 Fast Non-Reasoning specifies output context (30,000 tokens).
Input capabilities
Documented input modalities across available providers
Both Grok-4 Fast Non-Reasoning and MiMo-V2.6-Pro support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Grok-4 Fast Non-Reasoning
MiMo-V2.6-Pro
License
Usage and distribution terms
Grok-4 Fast Non-Reasoning is licensed under a proprietary license, while MiMo-V2.6-Pro uses MIT.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
MIT
Open weights
Release Timeline
When each model was launched
Grok-4 Fast Non-Reasoning was released on 2025-08-28, while MiMo-V2.6-Pro was released on 2026-09-22.
MiMo-V2.6-Pro is 13 months newer than Grok-4 Fast Non-Reasoning.
Aug 28, 2025
1.1 years ago
Sep 22, 2026
0 days ago
1.1yr newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Grok-4 Fast Non-Reasoning is available from xAI. MiMo-V2.6-Pro is available from Xiaomi.
Grok-4 Fast Non-Reasoning
MiMo-V2.6-Pro
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok-4 Fast Non-Reasoning and MiMo-V2.6-Pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok-4 Fast Non-Reasoning vs MiMo-V2.6-Pro.