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Kimi K2.8 Preview vs Seed 2.0 Mini

Comparing Kimi K2.8 Preview and Seed 2.0 Mini across benchmarks, pricing, and capabilities.

Moonshot AI · ByteDance · Updated for 2026

Which is better?

Kimi K2.8 Preview and Seed 2.0 Mini trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

Kimi K2.8 Preview 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 Kimi K2.8 Preview

  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Sep 2026

Choose Seed 2.0 Mini

  • you want predictable pricing at $0.10/M input and $0.40/M output

At a glance

The differences that matter most.

Benchmark wins
Input price
— / M
$0.10 / M
Output price
— / M
$0.40 / M
Context window
1,048,576
256,000

Individual benchmarks

0 reported for Kimi K2.8 Preview · 83 for Seed 2.0 Mini

No common benchmarks found

Kimi K2.8 Preview and Seed 2.0 Minidon'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

Context Window

Maximum input and output token capacity

Kimi K2.8 Preview accepts 1,048,576 input tokens compared to Seed 2.0 Mini's 256,000 tokens. Only Seed 2.0 Mini specifies output context (256,000 tokens).

Moonshot AI
Kimi K2.8 Preview
Input1,048,576 tokens
Output- tokens
ByteDance
Seed 2.0 Mini
Input256,000 tokens
Output256,000 tokens
Sun Sep 20 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Kimi K2.8 Preview and Seed 2.0 Mini support multimodal inputs.

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

Kimi K2.8 Preview

Text
Images
Audio
Video

Seed 2.0 Mini

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.

Kimi K2.8 Preview

Proprietary

Closed source

Seed 2.0 Mini

Proprietary

Closed source

Release Timeline

When each model was launched

Kimi K2.8 Preview was released on 2026-09-11, while Seed 2.0 Mini was released on 2026-02-17.

Kimi K2.8 Preview is 7 months newer than Seed 2.0 Mini.

Kimi K2.8 Preview

Sep 11, 2026

1 weeks ago

6mo newer
Seed 2.0 Mini

Feb 17, 2026

7 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

Kimi K2.8 Preview is available from Moonshot AI. Seed 2.0 Mini is available from DeepInfra.

Kimi K2.8 Preview

moonshot logo
Unknown Organization

Seed 2.0 Mini

deepinfra logo
Deepinfra
Input Price:Input: $0.10/1MOutput Price:Output: $0.40/1M
* 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 Kimi K2.8 Preview and Seed 2.0 Mini side-by-side, then vote on the output you prefer.

Kimi K2.8 Preview
✓ Preferred
Seed 2.0 Mini
Open in Playground

FAQ

Common questions about Kimi K2.8 Preview vs Seed 2.0 Mini.

Which is better, Kimi K2.8 Preview or Seed 2.0 Mini?

Kimi K2.8 Preview (Moonshot AI) and Seed 2.0 Mini (ByteDance) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Kimi K2.8 Preview compare to Seed 2.0 Mini in benchmarks?

Seed 2.0 Mini scores CountBench: 95.5%, VLMsAreBlind: 93.1%, Graphwalks parents <128k: 93.0%, CharXiv-D: 91.9%, LongFact Concepts: 91.4%.

What are the context window sizes for Kimi K2.8 Preview and Seed 2.0 Mini?

Kimi K2.8 Preview supports 1.0M tokens and Seed 2.0 Mini supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Kimi K2.8 Preview and Seed 2.0 Mini?

Key differences include context window (1.0M vs 256K). See the full comparison above for benchmark-by-benchmark results.

Who makes Kimi K2.8 Preview and Seed 2.0 Mini?

Kimi K2.8 Preview is developed by Moonshot AI and Seed 2.0 Mini is developed by ByteDance.