Model Comparison

Kimi K3 vs Seed 2.0 LiteWhich is better in 2026?

Kimi K3 significantly outperforms across most benchmarks.

Verdict: Kimi K3 vs Seed 2.0 Lite — which is better?

Kimi K3 (by Moonshot AI) and Seed 2.0 Lite (by ByteDance) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Kimi K3 outperforms in 1 benchmarks (GPQA), while Seed 2.0 Lite is better at 0 benchmarks. Kimi K3 significantly outperforms across most benchmarks.

Choose Kimi K3 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you want the most recent training data — it shipped Jul 2026

Choose Seed 2.0 Lite if…

  • you are already invested in the ByteDance ecosystem

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Kimi K3 outperforms in 1 benchmarks (GPQA), while Seed 2.0 Lite is better at 0 benchmarks.

Kimi K3 significantly outperforms across most benchmarks.

Tue Jul 21 2026 • llm-stats.com

Arena Performance

Human preference votes

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
ByteDance
Seed 2.0 Lite
Input- tokens
Output- tokens
Tue Jul 21 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Kimi K3 and Seed 2.0 Lite support multimodal inputs.

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

Kimi K3

Text
Images
Audio
Video

Seed 2.0 Lite

Text
Images
Audio
Video

Release Timeline

When each model was launched

Kimi K3 was released on 2026-07-16, while Seed 2.0 Lite was released on 2026-02-14.

Kimi K3 is 5 months newer than Seed 2.0 Lite.

Kimi K3

Jul 16, 2026

5 days ago

5mo newer
Seed 2.0 Lite

Feb 14, 2026

5 months ago

Knowledge Cutoff

When training data ends

Seed 2.0 Lite has a documented knowledge cutoff of 2024-01-01, while Kimi K3's cutoff date is not specified.

We can confirm Seed 2.0 Lite's training data extends to 2024-01-01, but cannot make a direct comparison without Kimi K3's cutoff date.

Kimi K3

—

Seed 2.0 Lite

Jan 2024

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Moonshot AI
Larger context window (1,048,576 tokens)
Has open weights
Higher GPQA score (93.5% vs 85.1%)
ByteDance

No standout differentiators in the data we have for this pair.

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Kimi K3 and Seed 2.0 Lite side-by-side, then vote on the output you prefer.

Kimi K3
✓ Preferred
Seed 2.0 Lite
Open in Playground
AI Model Comparison Table
Feature
Moonshot AI
Kimi K3
ByteDance
Seed 2.0 Lite

FAQ

Common questions about Kimi K3 vs Seed 2.0 Lite.

Which is better, Kimi K3 or Seed 2.0 Lite?

Kimi K3 significantly outperforms across most benchmarks. Kimi K3 is made by Moonshot AI and Seed 2.0 Lite is made by ByteDance. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Kimi K3 compare to Seed 2.0 Lite in benchmarks?

Kimi K3 scores MathVision: 97.8%, DeepSearchQA: 95.0%, GPQA: 93.5%, CharXiv-R: 91.3%, BrowseComp: 91.2%. Seed 2.0 Lite scores AIME 2025: 93.0%, AIME 2026: 88.3%, GPQA: 85.1%, LiveCodeBench v6: 81.7%, SWE-Bench Verified: 73.5%.

What are the context window sizes for Kimi K3 and Seed 2.0 Lite?

Kimi K3 supports 1.0M tokens and Seed 2.0 Lite 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 Seed 2.0 Lite?

Key differences include licensing (Unknown vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Kimi K3 and Seed 2.0 Lite?

Kimi K3 is developed by Moonshot AI and Seed 2.0 Lite is developed by ByteDance.

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