The AI arena is free today

Open Superagent

MiMo-V2.6-Pro vs Solar Pro 4

MiMo-V2.6-Pro leads the LLM Stats Score 49.8 to 35.2. Solar Pro 4 is 1.0x cheaper per token.

Xiaomi · Upstage · Updated for 2026

Which is better?

MiMo-V2.6-Pro leads the overall LLM Stats Score 49.8 to 35.2, ranking #19 overall.

In the 1 individual benchmarks reported for both models, MiMo-V2.6-Pro wins 1; this is a narrower head-to-head signal than the composite indexes.

MiMo-V2.6-Pro 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 MiMo-V2.6-Pro

  • overall performance matters — it scores 49.8 and ranks #19 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 process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Sep 2026
  • you need open weights you can self-host or fine-tune

Choose Solar Pro 4

  • you want predictable pricing at $0.30/M input and $1.20/M output

At a glance

The differences that matter most.

Core performance indexes
49.8
#19
35.2
#91
45.2
#30
34.8
#87
41.8
#9
21.0
#93
37.5
#13
11.6
#110
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$0.43 / M
$0.30 / M
Output price
$0.87 / M
$1.20 / M
Context window
1,048,576
524,288

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
MiMo-V2.6-Pro
Solar Pro 4
28.0#21
8.7#136
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

18 reported for MiMo-V2.6-Pro · 9 for Solar Pro 4

1 shared

MiMo-V2.6-Pro outperforms in 1 benchmarks (Terminal-Bench 2.1), while Solar Pro 4 is better at 0 benchmarks.

MiMo-V2.6-Pro significantly outperforms across most benchmarks.

Tue Sep 22 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Solar Pro 4 costs less

For input processing, MiMo-V2.6-Pro ($0.43/1M tokens) is 1.4x more expensive than Solar Pro 4 ($0.30/1M tokens).

For output processing, MiMo-V2.6-Pro ($0.87/1M tokens) is 1.4x cheaper than Solar Pro 4 ($1.20/1M tokens).

In conclusion, MiMo-V2.6-Pro is more expensive than Solar Pro 4.*

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

Lowest available price from all providers
Tue Sep 22 2026 • llm-stats.com
Xiaomi
MiMo-V2.6-Pro
Input tokens$0.43
Output tokens$0.87
Best providerXiaomi
Upstage
Solar Pro 4
Input tokens$0.30
Output tokens$1.20
Best providerUnknown Organization
Notice missing or incorrect data?Start an Issue

Context Window

Maximum input and output token capacity

MiMo-V2.6-Pro accepts 1,048,576 input tokens compared to Solar Pro 4's 524,288 tokens. Only Solar Pro 4 specifies output context (131,072 tokens).

Xiaomi
MiMo-V2.6-Pro
Input1,048,576 tokens
Output- tokens
Upstage
Solar Pro 4
Input524,288 tokens
Output131,072 tokens
Tue Sep 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

MiMo-V2.6-Pro supports multimodal inputs, whereas Solar Pro 4 does not.

MiMo-V2.6-Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

MiMo-V2.6-Pro

Text
Images
Audio
Video

Solar Pro 4

Text
Images
Audio
Video

License

Usage and distribution terms

MiMo-V2.6-Pro is licensed under MIT, while Solar Pro 4 uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

MiMo-V2.6-Pro

MIT

Open weights

Solar Pro 4

Proprietary

Closed source

Release Timeline

When each model was launched

MiMo-V2.6-Pro was released on 2026-09-22, while Solar Pro 4 was released on 2026-08-06.

MiMo-V2.6-Pro is 2 months newer than Solar Pro 4.

MiMo-V2.6-Pro

Sep 22, 2026

0 days ago

1mo newer
Solar Pro 4

Aug 6, 2026

1 months ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

MiMo-V2.6-Pro is available from Xiaomi. Solar Pro 4 is available from Upstage.

MiMo-V2.6-Pro

xiaomi logo
Xiaomi
Input Price:Input: $0.43/1MOutput Price:Output: $0.87/1M

Solar Pro 4

upstage logo
Unknown Organization
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against MiMo-V2.6-Pro and Solar Pro 4 side-by-side, then vote on the output you prefer.

MiMo-V2.6-Pro
✓ Preferred
Solar Pro 4
Open in Playground

FAQ

Common questions about MiMo-V2.6-Pro vs Solar Pro 4.

Which is better, MiMo-V2.6-Pro or Solar Pro 4?

MiMo-V2.6-Pro leads the LLM Stats Score 49.8 to 35.2. MiMo-V2.6-Pro is made by Xiaomi and Solar Pro 4 is made by Upstage. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does MiMo-V2.6-Pro compare to Solar Pro 4 in benchmarks?

MiMo-V2.6-Pro scores CyberGym: 94.0%, Terminal-Bench 2.1: 89.9%, OSWorld-Verified: 82.0%, MiMo Cyber Bench: 81.7%, Toolathlon-Verified: 76.9%. Solar Pro 4 scores AIME 2026: 95.3%, GPQA: 89.0%, LiveCodeBench: 87.8%, MMLU-Pro: 86.3%, AA-LCR: 71.0%.

Is MiMo-V2.6-Pro cheaper than Solar Pro 4?

Solar Pro 4 is 1.4x cheaper for input tokens. MiMo-V2.6-Pro costs $0.43/M input and $0.87/M output via xiaomi. Solar Pro 4 costs $0.30/M input and $1.20/M output via upstage.

What are the context window sizes for MiMo-V2.6-Pro and Solar Pro 4?

MiMo-V2.6-Pro supports 1.0M tokens and Solar Pro 4 supports 524K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between MiMo-V2.6-Pro and Solar Pro 4?

Key differences include LLM Stats Score (49.8 vs 35.2), context window (1.0M vs 524K), input pricing ($0.43 vs $0.30/M), multimodal support (yes vs no), licensing (MIT vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes MiMo-V2.6-Pro and Solar Pro 4?

MiMo-V2.6-Pro is developed by Xiaomi and Solar Pro 4 is developed by Upstage.