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IBM Granite 4.2 30B vs Kimi K2.8 Preview

Comparing IBM Granite 4.2 30B and Kimi K2.8 Preview across benchmarks, pricing, and capabilities.

IBM · Moonshot AI · Updated for 2026

Which is better?

IBM Granite 4.2 30B and Kimi K2.8 Preview 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 IBM Granite 4.2 30B

  • you need open weights you can self-host or fine-tune

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

At a glance

The differences that matter most.

IBM Granite 4.2 30B
IBM
Kimi K2.8 Preview
Moonshot AI
Benchmark wins
—
—
Input price
$0.16 / M
— / M
Output price
$0.65 / M
— / M
Context window
131,072
1,048,576

Individual benchmarks

18 reported for IBM Granite 4.2 30B · 0 for Kimi K2.8 Preview

No common benchmarks found

IBM Granite 4.2 30B and Kimi K2.8 Previewdon'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 IBM Granite 4.2 30B's 131,072 tokens. Only IBM Granite 4.2 30B specifies output context (131,072 tokens).

IBM
IBM Granite 4.2 30B
Input131,072 tokens
Output131,072 tokens
Moonshot AI
Kimi K2.8 Preview
Input1,048,576 tokens
Output- tokens
Tue Sep 22 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Kimi K2.8 Preview supports multimodal inputs, whereas IBM Granite 4.2 30B does not.

Kimi K2.8 Preview can handle both text and other forms of data like images, making it suitable for multimodal applications.

IBM Granite 4.2 30B

Text
Images
Audio
Video

Kimi K2.8 Preview

Text
Images
Audio
Video

License

Usage and distribution terms

IBM Granite 4.2 30B is licensed under Apache 2.0, while Kimi K2.8 Preview uses a proprietary license.

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

IBM Granite 4.2 30B

Apache 2.0

Open weights

Kimi K2.8 Preview

Proprietary

Closed source

Release Timeline

When each model was launched

IBM Granite 4.2 30B was released on 2026-08-25, while Kimi K2.8 Preview was released on 2026-09-11.

Kimi K2.8 Preview is 1 month newer than IBM Granite 4.2 30B.

IBM Granite 4.2 30B

Aug 25, 2026

4 weeks ago

Kimi K2.8 Preview

Sep 11, 2026

1 weeks ago

2w 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

Provider Availability

IBM Granite 4.2 30B is available from DeepInfra. Kimi K2.8 Preview is available from Moonshot AI.

IBM Granite 4.2 30B

deepinfra logo
Deepinfra
Input Price:Input: $0.16/1MOutput Price:Output: $0.65/1M

Kimi K2.8 Preview

moonshot logo
Unknown Organization
* 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 IBM Granite 4.2 30B and Kimi K2.8 Preview side-by-side, then vote on the output you prefer.

IBM Granite 4.2 30B
✓ Preferred
Kimi K2.8 Preview
Open in Playground

FAQ

Common questions about IBM Granite 4.2 30B vs Kimi K2.8 Preview.

Which is better, IBM Granite 4.2 30B or Kimi K2.8 Preview?

IBM Granite 4.2 30B (IBM) and Kimi K2.8 Preview (Moonshot AI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does IBM Granite 4.2 30B compare to Kimi K2.8 Preview in benchmarks?

IBM Granite 4.2 30B scores RULER 64k: 90.0%, AIME 2025: 89.2%, HMMT25: 89.2%, RULER 128k: 81.4%, MMLU-Pro: 77.6%.

What are the context window sizes for IBM Granite 4.2 30B and Kimi K2.8 Preview?

IBM Granite 4.2 30B supports 131K tokens and Kimi K2.8 Preview supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between IBM Granite 4.2 30B and Kimi K2.8 Preview?

Key differences include context window (131K vs 1.0M), multimodal support (no vs yes), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes IBM Granite 4.2 30B and Kimi K2.8 Preview?

IBM Granite 4.2 30B is developed by IBM and Kimi K2.8 Preview is developed by Moonshot AI.

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