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Granite 3.3 8B Base vs Kimi K2.8 Preview

Comparing Granite 3.3 8B Base and Kimi K2.8 Preview across benchmarks, pricing, and capabilities.

IBM · Moonshot AI · Updated for 2026

Which is better?

Granite 3.3 8B Base and Kimi K2.8 Preview trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

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

Choose Granite 3.3 8B Base

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

Choose Kimi K2.8 Preview

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

At a glance

The differences that matter most.

Granite 3.3 8B Base
IBM
Kimi K2.8 Preview
Moonshot AI
Benchmark wins
—
—
Input price
— / M
— / M
Output price
— / M
— / M
Context window
—
1,048,576

Individual benchmarks

20 reported for Granite 3.3 8B Base · 0 for Kimi K2.8 Preview

No common benchmarks found

Granite 3.3 8B Base 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

Only Kimi K2.8 Preview specifies input context (1,048,576 tokens).

IBM
Granite 3.3 8B Base
Input- tokens
Output- tokens
Moonshot AI
Kimi K2.8 Preview
Input1,048,576 tokens
Output- tokens
Mon Sep 14 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Granite 3.3 8B Base and Kimi K2.8 Preview support multimodal inputs.

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

Granite 3.3 8B Base

Text
Images
Audio
Video

Kimi K2.8 Preview

Text
Images
Audio
Video

License

Usage and distribution terms

Granite 3.3 8B Base 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.

Granite 3.3 8B Base

Apache 2.0

Open weights

Kimi K2.8 Preview

Proprietary

Closed source

Release Timeline

When each model was launched

Granite 3.3 8B Base was released on 2025-04-16, while Kimi K2.8 Preview was released on 2026-09-11.

Kimi K2.8 Preview is 17 months newer than Granite 3.3 8B Base.

Granite 3.3 8B Base

Apr 16, 2025

1.4 years ago

Kimi K2.8 Preview

Sep 11, 2026

3 days ago

1.4yr newer

Knowledge Cutoff

When training data ends

Granite 3.3 8B Base has a documented knowledge cutoff of 2024-04-01, while Kimi K2.8 Preview's cutoff date is not specified.

We can confirm Granite 3.3 8B Base's training data extends to 2024-04-01, but cannot make a direct comparison without Kimi K2.8 Preview's cutoff date.

Granite 3.3 8B Base

Apr 2024

Kimi K2.8 Preview

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Granite 3.3 8B Base and Kimi K2.8 Preview side-by-side, then vote on the output you prefer.

Granite 3.3 8B Base
✓ Preferred
Kimi K2.8 Preview
Open in Playground

FAQ

Common questions about Granite 3.3 8B Base vs Kimi K2.8 Preview.

Which is better, Granite 3.3 8B Base or Kimi K2.8 Preview?

Granite 3.3 8B Base (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 Granite 3.3 8B Base compare to Kimi K2.8 Preview in benchmarks?

Granite 3.3 8B Base scores HumanEval: 89.7%, AttaQ: 88.5%, HumanEval+: 86.1%, AIME 2024: 81.2%, HellaSwag: 80.1%.

What are the context window sizes for Granite 3.3 8B Base and Kimi K2.8 Preview?

Granite 3.3 8B Base supports an unknown number of 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 Granite 3.3 8B Base and Kimi K2.8 Preview?

Key differences include licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Granite 3.3 8B Base and Kimi K2.8 Preview?

Granite 3.3 8B Base is developed by IBM and Kimi K2.8 Preview is developed by Moonshot AI.

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