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Kimi K3 vs Qwen3.8-Flash-Next

Kimi K3 leads the LLM Stats Score 53.8 to 49.2.

Moonshot AI · Alibaba Cloud / Qwen Team · Updated for 2026

Which is better?

Kimi K3 leads the overall LLM Stats Score 53.8 to 49.2, ranking #8 overall.

In the 7 individual benchmarks reported for both models, Kimi K3 wins 5; this is a narrower head-to-head signal than the composite indexes.

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

Choose Kimi K3

  • overall performance matters — it scores 53.8 and ranks #8 on LLM Stats
  • you value its reported benchmark strengths — it wins 5 of 7 exact shared results

Choose Qwen3.8-Flash-Next

  • you want the most recent training data — it shipped Aug 2026

At a glance

The differences that matter most.

Core performance indexes
53.8
#8
49.2
#19
52.6
#8
48.9
#18
43.4
#5
36.1
#21
39.1
#8
34.7
#18
Cost, coverage & limits
Benchmark wins
5 of 7
2 of 7
Input price
$3.00 / M
— / M
Output price
$15.00 / M
— / M
Context window
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

5 shared
Index
Kimi K3
Qwen3.8-Flash-Next
40.6#11
32.6#55
37.7#4
33.9#13
34.1#3
30.7#13
39.1#1
35.6#8
6.6#9
15.3#2
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

31 reported for Kimi K3 · 22 for Qwen3.8-Flash-Next

7 shared

Kimi K3 outperforms in 5 benchmarks (CharXiv-R, DeepSWE 1.1, GPQA, Humanity's Last Exam, MathVision), while Qwen3.8-Flash-Next is better at 2 benchmarks (Job Bench, Toolathlon).

Kimi K3 shows notably better performance in the majority of benchmarks.

Sat Sep 05 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Model Size

Parameter count comparison

2675.0B diff

Kimi K3 has 2675.0B more parameters than Qwen3.8-Flash-Next, making it 2140.0% larger.

Moonshot AI
Kimi K3
2.8Tparameters
Alibaba Cloud / Qwen Team
Qwen3.8-Flash-Next
125.0Bparameters
2800.0B
Kimi K3
125.0B
Qwen3.8-Flash-Next

Context Window

Maximum input and output token capacity

Only Kimi K3 specifies input context (1,048,576 tokens). Only Kimi K3 specifies output context (1,048,576 tokens).

Moonshot AI
Kimi K3
Input1,048,576 tokens
Output1,048,576 tokens
Alibaba Cloud / Qwen Team
Qwen3.8-Flash-Next
Input- tokens
Output- tokens
Sat Sep 05 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Kimi K3 and Qwen3.8-Flash-Next support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Kimi K3

Text
Images
Audio
Video

Qwen3.8-Flash-Next

Text
Images
Audio
Video

License

Usage and distribution terms

Kimi K3 is licensed under Kimi K3 License, while Qwen3.8-Flash-Next uses Qwen Community License 1.0.

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

Kimi K3

Kimi K3 License

Open weights

Qwen3.8-Flash-Next

Qwen Community License 1.0

Open weights

Release Timeline

When each model was launched

Kimi K3 was released on 2026-07-16, while Qwen3.8-Flash-Next was released on 2026-08-26.

Qwen3.8-Flash-Next is 1 month newer than Kimi K3.

Kimi K3

Jul 16, 2026

1 months ago

Qwen3.8-Flash-Next

Aug 26, 2026

1 weeks ago

1mo 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 Kimi K3 and Qwen3.8-Flash-Next side-by-side, then vote on the output you prefer.

Kimi K3
✓ Preferred
Qwen3.8-Flash-Next
Open in Playground

FAQ

Common questions about Kimi K3 vs Qwen3.8-Flash-Next.

Which is better, Kimi K3 or Qwen3.8-Flash-Next?

Kimi K3 leads the LLM Stats Score 53.8 to 49.2. Kimi K3 is made by Moonshot AI and Qwen3.8-Flash-Next is made by Alibaba Cloud / Qwen Team. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Kimi K3 compare to Qwen3.8-Flash-Next in benchmarks?

Kimi K3 scores MathVision: 97.8%, DeepSearchQA: 95.0%, GPQA: 93.5%, CharXiv-R: 91.3%, BrowseComp: 91.2%. Qwen3.8-Flash-Next scores MathVision: 95.7%, LiveCodeBench v6: 91.9%, GPQA: 91.7%, CharXiv-R: 90.6%, RealWorldQA: 88.5%.

What are the context window sizes for Kimi K3 and Qwen3.8-Flash-Next?

Kimi K3 supports 1.0M tokens and Qwen3.8-Flash-Next 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 Kimi K3 and Qwen3.8-Flash-Next?

Key differences include LLM Stats Score (53.8 vs 49.2), licensing (Kimi K3 License vs Qwen Community License 1.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Kimi K3 and Qwen3.8-Flash-Next?

Kimi K3 is developed by Moonshot AI and Qwen3.8-Flash-Next is developed by Alibaba Cloud / Qwen Team.