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Llama 3.1 405B Instruct vs MiMo-V2.6-Flash

MiMo-V2.6-Flash leads the LLM Stats Score 45.7 to 14.7.

Meta · Xiaomi · Updated for 2026

Which is better?

MiMo-V2.6-Flash leads the overall LLM Stats Score 45.7 to 14.7, ranking #29 overall.

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

Choose Llama 3.1 405B Instruct

  • you want predictable pricing at $0.89/M input and $0.89/M output

Choose MiMo-V2.6-Flash

  • overall performance matters — it scores 45.7 and ranks #29 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

At a glance

The differences that matter most.

Core performance indexes
14.7
#236
45.7
#29
13.8
#235
43.2
#42
11.5
#157
36.6
#21
Cost, coverage & limits
Benchmark wins
Input price
$0.89 / M
— / M
Output price
$0.89 / M
— / M
Context window
128,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Llama 3.1 405B Instruct
MiMo-V2.6-Flash
30.8#14
28.1#22
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

18 reported for Llama 3.1 405B Instruct · 16 for MiMo-V2.6-Flash

No common benchmarks found

Llama 3.1 405B Instruct and MiMo-V2.6-Flashdon'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

Model Size

Parameter count comparison

96.0B diff

Llama 3.1 405B Instruct has 96.0B more parameters than MiMo-V2.6-Flash, making it 31.1% larger.

Meta
Llama 3.1 405B Instruct
405.0Bparameters
Xiaomi
MiMo-V2.6-Flash
309.0Bparameters
405.0B
Llama 3.1 405B Instruct
309.0B
MiMo-V2.6-Flash

Context Window

Maximum input and output token capacity

Only Llama 3.1 405B Instruct specifies input context (128,000 tokens). Only Llama 3.1 405B Instruct specifies output context (128,000 tokens).

Meta
Llama 3.1 405B Instruct
Input128,000 tokens
Output128,000 tokens
Xiaomi
MiMo-V2.6-Flash
Input- tokens
Output- tokens
Mon Sep 21 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

MiMo-V2.6-Flash supports multimodal inputs, whereas Llama 3.1 405B Instruct does not.

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

Llama 3.1 405B Instruct

Text
Images
Audio
Video

MiMo-V2.6-Flash

Text
Images
Audio
Video

License

Usage and distribution terms

Llama 3.1 405B Instruct is licensed under Llama 3.1 Community License, while MiMo-V2.6-Flash uses MIT.

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

Llama 3.1 405B Instruct

Llama 3.1 Community License

Open weights

MiMo-V2.6-Flash

MIT

Open weights

Release Timeline

When each model was launched

Llama 3.1 405B Instruct was released on 2024-07-23, while MiMo-V2.6-Flash was released on 2026-09-22.

MiMo-V2.6-Flash is 26 months newer than Llama 3.1 405B Instruct.

Llama 3.1 405B Instruct

Jul 23, 2024

2.2 years ago

MiMo-V2.6-Flash

Sep 22, 2026

-1 days ago

2.2yr newer

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

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against Llama 3.1 405B Instruct and MiMo-V2.6-Flash side-by-side, then vote on the output you prefer.

Llama 3.1 405B Instruct
✓ Preferred
MiMo-V2.6-Flash
Open in Playground

FAQ

Common questions about Llama 3.1 405B Instruct vs MiMo-V2.6-Flash.

Which is better, Llama 3.1 405B Instruct or MiMo-V2.6-Flash?

MiMo-V2.6-Flash leads the LLM Stats Score 45.7 to 14.7. Llama 3.1 405B Instruct is made by Meta and MiMo-V2.6-Flash is made by Xiaomi. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Llama 3.1 405B Instruct compare to MiMo-V2.6-Flash in benchmarks?

Llama 3.1 405B Instruct scores ARC-C: 96.9%, GSM8k: 96.8%, API-Bank: 92.0%, Multilingual MGSM (CoT): 91.6%, HumanEval: 89.0%. MiMo-V2.6-Flash scores CyberGym: 95.1%, Terminal-Bench 2.1: 87.6%, OSWorld-Verified: 80.8%, MiMo Cyber Bench: 77.2%, Toolathlon-Verified: 73.6%.

What are the context window sizes for Llama 3.1 405B Instruct and MiMo-V2.6-Flash?

Llama 3.1 405B Instruct supports 128K tokens and MiMo-V2.6-Flash supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Llama 3.1 405B Instruct and MiMo-V2.6-Flash?

Key differences include LLM Stats Score (14.7 vs 45.7), multimodal support (no vs yes), licensing (Llama 3.1 Community License vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Llama 3.1 405B Instruct and MiMo-V2.6-Flash?

Llama 3.1 405B Instruct is developed by Meta and MiMo-V2.6-Flash is developed by Xiaomi.