Claude Sonnet 5.5 vs MiMo-V2.6-Flash
Claude Sonnet 5.5 leads the LLM Stats Score 51.5 to 45.6. MiMo-V2.6-Flash is 22.9x cheaper per token.
Anthropic · Xiaomi · Updated for 2026
Which is better?
Claude Sonnet 5.5 leads the overall LLM Stats Score 51.5 to 45.6, ranking #12 overall.
In the 1 individual benchmarks reported for both models, Claude Sonnet 5.5 wins 1; this is a narrower head-to-head signal than the composite indexes.
On price, MiMo-V2.6-Flash is roughly 22.9x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
MiMo-V2.6-Flash also accepts a larger context window (1,048,576 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 Claude Sonnet 5.5
- overall performance matters — it scores 51.5 and ranks #12 on LLM Stats
- your work emphasizes coding and agents — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you want the most recent training data — it shipped Sep 2026
Choose MiMo-V2.6-Flash
- cost matters — it's about 22.9x cheaper per token
- you process long inputs — it offers a 1,048,576 token context window
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Individual benchmarks
8 reported for Claude Sonnet 5.5 · 16 for MiMo-V2.6-Flash
Claude Sonnet 5.5 outperforms in 1 benchmarks (Terminal-Bench 4.0), while MiMo-V2.6-Flash is better at 0 benchmarks.
Claude Sonnet 5.5 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Claude Sonnet 5.5 ($2.00/1M tokens) is 14.3x more expensive than MiMo-V2.6-Flash ($0.14/1M tokens).
For output processing, Claude Sonnet 5.5 ($10.00/1M tokens) is 35.7x more expensive than MiMo-V2.6-Flash ($0.28/1M tokens).
In conclusion, Claude Sonnet 5.5 is more expensive than MiMo-V2.6-Flash.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
MiMo-V2.6-Flash accepts 1,048,576 input tokens compared to Claude Sonnet 5.5's 1,000,000 tokens. Only Claude Sonnet 5.5 specifies output context (128,000 tokens).
Input capabilities
Documented input modalities across available providers
Both Claude Sonnet 5.5 and MiMo-V2.6-Flash support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Sonnet 5.5
MiMo-V2.6-Flash
License
Usage and distribution terms
Claude Sonnet 5.5 is licensed under a proprietary license, while MiMo-V2.6-Flash 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
Claude Sonnet 5.5 was released on 2026-09-28, while MiMo-V2.6-Flash was released on 2026-09-22.
Claude Sonnet 5.5 is 0 month newer than MiMo-V2.6-Flash.
Sep 28, 2026
-2 days ago
6d newerSep 22, 2026
4 days ago
Knowledge Cutoff
When training data ends
Claude Sonnet 5.5 has a documented knowledge cutoff of 2026-06-01, while MiMo-V2.6-Flash's cutoff date is not specified.
We can confirm Claude Sonnet 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without MiMo-V2.6-Flash's cutoff date.
Jun 2026
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Provider Availability
Claude Sonnet 5.5 is available from Anthropic. MiMo-V2.6-Flash is available from Xiaomi.
Claude Sonnet 5.5
MiMo-V2.6-Flash
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Sonnet 5.5 and MiMo-V2.6-Flash side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Sonnet 5.5 vs MiMo-V2.6-Flash.