Model Comparison

Granite 3.3 8B Base vs Kimi K3Which is better in 2026?

Comparing Granite 3.3 8B Base and Kimi K3 across benchmarks, pricing, and capabilities.

Verdict: Granite 3.3 8B Base vs Kimi K3 — which is better?

Granite 3.3 8B Base (by IBM) and Kimi K3 (by Moonshot AI) 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.

Choose Granite 3.3 8B Base if…

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

Choose Kimi K3 if…

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

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Granite 3.3 8B Base and Kimi K3don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Model Size

Parameter count comparison

2791.8B diff

Kimi K3 has 2791.8B more parameters than Granite 3.3 8B Base, making it 34171.7% larger.

IBM
Granite 3.3 8B Base
8.2Bparameters
Moonshot AI
Kimi K3
2.8Tparameters
8.2B
Granite 3.3 8B Base
2800.0B
Kimi K3

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).

IBM
Granite 3.3 8B Base
Input- tokens
Output- tokens
Moonshot AI
Kimi K3
Input1,048,576 tokens
Output1,048,576 tokens
Tue Jul 21 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Granite 3.3 8B Base and Kimi K3 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 K3

Text
Images
Audio
Video

Release Timeline

When each model was launched

Granite 3.3 8B Base was released on 2025-04-16, while Kimi K3 was released on 2026-07-16.

Kimi K3 is 15 months newer than Granite 3.3 8B Base.

Granite 3.3 8B Base

Apr 16, 2025

1.3 years ago

Kimi K3

Jul 16, 2026

5 days ago

1.2yr newer

Knowledge Cutoff

When training data ends

Granite 3.3 8B Base has a documented knowledge cutoff of 2024-04-01, while Kimi K3'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 K3's cutoff date.

Granite 3.3 8B Base

Apr 2024

Kimi K3

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

IBM

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

Moonshot AI
Larger context window (1,048,576 tokens)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Granite 3.3 8B Base and Kimi K3 side-by-side, then vote on the output you prefer.

Granite 3.3 8B Base
✓ Preferred
Kimi K3
Open in Playground
AI Model Comparison Table
Feature
IBM
Granite 3.3 8B Base
Moonshot AI
Kimi K3

FAQ

Common questions about Granite 3.3 8B Base vs Kimi K3.

Which is better, Granite 3.3 8B Base or Kimi K3?

Granite 3.3 8B Base (IBM) and Kimi K3 (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 K3 in benchmarks?

Granite 3.3 8B Base scores HumanEval: 89.7%, AttaQ: 88.5%, HumanEval+: 86.1%, AIME 2024: 81.2%, HellaSwag: 80.1%. Kimi K3 scores MathVision: 97.8%, DeepSearchQA: 95.0%, GPQA: 93.5%, CharXiv-R: 91.3%, BrowseComp: 91.2%.

What are the context window sizes for Granite 3.3 8B Base and Kimi K3?

Granite 3.3 8B Base supports an unknown number of tokens and Kimi K3 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 K3?

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

Who makes Granite 3.3 8B Base and Kimi K3?

Granite 3.3 8B Base is developed by IBM and Kimi K3 is developed by Moonshot AI.

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