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Claude Opus 5.5 vs MiMo-V2-Pro

Claude Opus 5.5 leads the LLM Stats Score 60.3 to 35.6. MiMo-V2-Pro is 5.3x cheaper per token.

Anthropic · Xiaomi · Updated for 2026

Which is better?

Claude Opus 5.5 leads the overall LLM Stats Score 60.3 to 35.6, ranking #1 overall.

In the 1 individual benchmarks reported for both models, Claude Opus 5.5 wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, MiMo-V2-Pro is roughly 5.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Opus 5.5

  • overall performance matters — it scores 60.3 and ranks #1 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-Pro

  • cost matters — it's about 5.3x cheaper per token

At a glance

The differences that matter most.

Claude Opus 5.5
Anthropic
MiMo-V2-Pro
Xiaomi
Core performance indexes
LLM Stats Score
60.3
#1
35.6
#91
Reasoning
58.4
#1
37.4
#73
Coding
51.4
#1
25.7
#74
Agents
45.7
#2
17.1
#83
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$4.00 / M
$1.00 / M
Output price
$20.00 / M
$3.00 / M
Context window
1,000,000
1,000,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Claude Opus 5.5
MiMo-V2-Pro
Tool use
32.2#3
18.3#73
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

31 reported for Claude Opus 5.5 · 7 for MiMo-V2-Pro

1 shared

Claude Opus 5.5 outperforms in 1 benchmarks (SWE-bench Multilingual), while MiMo-V2-Pro is better at 0 benchmarks.

Claude Opus 5.5 significantly outperforms across most benchmarks.

Fri Oct 02 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

MiMo-V2-Pro costs less

For input processing, Claude Opus 5.5 ($4.00/1M tokens) is 4.0x more expensive than MiMo-V2-Pro ($1.00/1M tokens).

For output processing, Claude Opus 5.5 ($20.00/1M tokens) is 6.7x more expensive than MiMo-V2-Pro ($3.00/1M tokens).

In conclusion, Claude Opus 5.5 is more expensive than MiMo-V2-Pro.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Fri Oct 02 2026 • llm-stats.com
Anthropic
Claude Opus 5.5
Input tokens$4.00
Output tokens$20.00
Best providerAnthropic
Xiaomi
MiMo-V2-Pro
Input tokens$1.00
Output tokens$3.00
Best providerXiaomi
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,000,000 tokens. Claude Opus 5.5 can generate longer responses up to 128,000 tokens, while MiMo-V2-Pro is limited to 16,384 tokens.

Anthropic
Claude Opus 5.5
Input1,000,000 tokens
Output128,000 tokens
Xiaomi
MiMo-V2-Pro
Input1,000,000 tokens
Output16,384 tokens
Fri Oct 02 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Claude Opus 5.5 supports multimodal inputs, whereas MiMo-V2-Pro does not.

Claude Opus 5.5 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Claude Opus 5.5

Text
Images
Audio
Video

MiMo-V2-Pro

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Opus 5.5

Proprietary

Closed source

MiMo-V2-Pro

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Opus 5.5 was released on 2026-09-22, while MiMo-V2-Pro was released on 2026-03-18.

Claude Opus 5.5 is 6 months newer than MiMo-V2-Pro.

Claude Opus 5.5

Sep 22, 2026

1 weeks ago

6mo newer
MiMo-V2-Pro

Mar 18, 2026

6 months ago

Knowledge Cutoff

When training data ends

Claude Opus 5.5 has a documented knowledge cutoff of 2026-06-01, while MiMo-V2-Pro's cutoff date is not specified.

We can confirm Claude Opus 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without MiMo-V2-Pro's cutoff date.

Claude Opus 5.5

Jun 2026

MiMo-V2-Pro

—

Provider Availability

Claude Opus 5.5 is available from Anthropic. MiMo-V2-Pro is available from Xiaomi.

Claude Opus 5.5

anthropic logo
Anthropic
Input Price:Input: $4.00/1MOutput Price:Output: $20.00/1M

MiMo-V2-Pro

xiaomi logo
Xiaomi
Input Price:Input: $1.00/1MOutput Price:Output: $3.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Opus 5.5 and MiMo-V2-Pro side-by-side, then vote on the output you prefer.

Claude Opus 5.5
✓ Preferred
MiMo-V2-Pro
Open in Playground

FAQ

Common questions about Claude Opus 5.5 vs MiMo-V2-Pro.

Which is better, Claude Opus 5.5 or MiMo-V2-Pro?

Claude Opus 5.5 leads the LLM Stats Score 60.3 to 35.6. Claude Opus 5.5 is made by Anthropic and MiMo-V2-Pro is made by Xiaomi. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Opus 5.5 compare to MiMo-V2-Pro in benchmarks?

Claude Opus 5.5 scores BenchCAD (with Python tool): 96.2%, Global-MMLU: 94.3%, SWE-bench Multilingual: 93.9%, MILU: 93.1%, ArXivMath: 91.2%. MiMo-V2-Pro scores Tau2 Telecom: 96.8%, DeepSearchQA: 86.7%, PinchBench: 81.0%, SWE-Bench Verified: 78.0%, SWE-bench Multilingual: 71.7%.

Is Claude Opus 5.5 cheaper than MiMo-V2-Pro?

MiMo-V2-Pro is 4.0x cheaper for input tokens. Claude Opus 5.5 costs $4.00/M input and $20.00/M output via anthropic. MiMo-V2-Pro costs $1.00/M input and $3.00/M output via xiaomi.

What are the context window sizes for Claude Opus 5.5 and MiMo-V2-Pro?

Claude Opus 5.5 supports 1.0M tokens and MiMo-V2-Pro supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Opus 5.5 and MiMo-V2-Pro?

Key differences include LLM Stats Score (60.3 vs 35.6), input pricing ($4.00 vs $1.00/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 5.5 and MiMo-V2-Pro?

Claude Opus 5.5 is developed by Anthropic and MiMo-V2-Pro is developed by Xiaomi.

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