Claude Sonnet 5.5 vs MiMo-V2.5
Claude Sonnet 5.5 leads the LLM Stats Score 58.3 to 35.9. MiMo-V2.5 is 19.0x cheaper per token.
Anthropic · Xiaomi · Updated for 2026
Which is better?
Claude Sonnet 5.5 leads the overall LLM Stats Score 58.3 to 35.9, ranking #2 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-V2.5 is roughly 19.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
MiMo-V2.5 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 58.3 and ranks #2 on LLM Stats
- your work emphasizes reasoning and coding — 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-V2.5
- cost matters — it's about 19.0x 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.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
47 reported for Claude Sonnet 5.5 · 14 for MiMo-V2.5
Claude Sonnet 5.5 outperforms in 1 benchmarks (SWE-Bench Pro), while MiMo-V2.5 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 11.9x more expensive than MiMo-V2.5 ($0.17/1M tokens).
For output processing, Claude Sonnet 5.5 ($10.00/1M tokens) is 29.8x more expensive than MiMo-V2.5 ($0.34/1M tokens).
In conclusion, Claude Sonnet 5.5 is more expensive than MiMo-V2.5.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
MiMo-V2.5 accepts 1,048,576 input tokens compared to Claude Sonnet 5.5's 1,000,000 tokens. MiMo-V2.5 can generate longer responses up to 131,072 tokens, while Claude Sonnet 5.5 is limited to 128,000 tokens.
Input capabilities
Documented input modalities across available providers
Both Claude Sonnet 5.5 and MiMo-V2.5 support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Sonnet 5.5
MiMo-V2.5
License
Usage and distribution terms
Claude Sonnet 5.5 is licensed under a proprietary license, while MiMo-V2.5 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-V2.5 was released on 2026-04-22.
Claude Sonnet 5.5 is 5 months newer than MiMo-V2.5.
Sep 28, 2026
1 weeks ago
5mo newerApr 22, 2026
5 months ago
Knowledge Cutoff
When training data ends
Claude Sonnet 5.5 has a documented knowledge cutoff of 2026-06-01, while MiMo-V2.5'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-V2.5's cutoff date.
Jun 2026
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Provider Availability
Claude Sonnet 5.5 is available from Anthropic. MiMo-V2.5 is available from Novita, DeepInfra.
Claude Sonnet 5.5
MiMo-V2.5
Outputs Comparison
Judge for yourself.
Run your own prompts against Claude Sonnet 5.5 and MiMo-V2.5 side-by-side, then vote on the output you prefer.
FAQ
Common questions about Claude Sonnet 5.5 vs MiMo-V2.5.