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Granite 3.3 8B Base vs Kimi K3.1 Pro

Kimi K3.1 Pro leads the LLM Stats Score 55.5 to -1.0.

IBM · Moonshot AI · Updated for 2026

Which is better?

Kimi K3.1 Pro leads the overall LLM Stats Score 55.5 to -1.0, ranking #5 overall.

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 K3.1 Pro

  • overall performance matters — it scores 55.5 and ranks #5 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

Granite 3.3 8B Base
IBM
Kimi K3.1 Pro
Moonshot AI
Core performance indexes
LLM Stats Score
-1.0
#366
55.5
#5
Reasoning
-1.1
#360
54.3
#6
Coding
10.9
#190
42.7
#9
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$2.00 / M
Output price
— / M
$10.00 / M
Context window
—
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Granite 3.3 8B Base
Kimi K3.1 Pro
Math
-0.9#319
38.6#26
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

20 reported for Granite 3.3 8B Base · 30 for Kimi K3.1 Pro

No common benchmarks found

Granite 3.3 8B Base and Kimi K3.1 Prodon'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 K3.1 Pro specifies input context (1,048,576 tokens). Only Kimi K3.1 Pro specifies output context (1,048,576 tokens).

IBM
Granite 3.3 8B Base
Input- tokens
Output- tokens
Moonshot AI
Kimi K3.1 Pro
Input1,048,576 tokens
Output1,048,576 tokens
Thu Oct 29 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Granite 3.3 8B Base and Kimi K3.1 Pro 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 K3.1 Pro

Text
Images
Audio
Video

Release Timeline

When each model was launched

Granite 3.3 8B Base was released on 2025-04-16, while Kimi K3.1 Pro was released on 2026-10-23.

Kimi K3.1 Pro is 19 months newer than Granite 3.3 8B Base.

Granite 3.3 8B Base

Apr 16, 2025

1.5 years ago

Kimi K3.1 Pro

Oct 23, 2026

3 days ago

1.5yr newer

Knowledge Cutoff

When training data ends

Granite 3.3 8B Base has a documented knowledge cutoff of 2024-04-01, while Kimi K3.1 Pro'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 K3.1 Pro's cutoff date.

Granite 3.3 8B Base

Apr 2024

Kimi K3.1 Pro

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Granite 3.3 8B Base and Kimi K3.1 Pro side-by-side, then vote on the output you prefer.

Granite 3.3 8B Base
✓ Preferred
Kimi K3.1 Pro
Open in Playground

FAQ

Common questions about Granite 3.3 8B Base vs Kimi K3.1 Pro.

Which is better, Granite 3.3 8B Base or Kimi K3.1 Pro?

Kimi K3.1 Pro leads the LLM Stats Score 55.5 to -1.0. Granite 3.3 8B Base is made by IBM and Kimi K3.1 Pro is made by Moonshot AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Granite 3.3 8B Base compare to Kimi K3.1 Pro 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 K3.1 Pro scores BabyVision: 95.4%, GPQA: 94.2%, BenchCAD (with Python tool): 92.7%, BrowseComp: 92.1%, Chartography: 90.2%.

What are the context window sizes for Granite 3.3 8B Base and Kimi K3.1 Pro?

Granite 3.3 8B Base supports an unknown number of tokens and Kimi K3.1 Pro 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 K3.1 Pro?

Key differences include LLM Stats Score (-1.0 vs 55.5), 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 K3.1 Pro?

Granite 3.3 8B Base is developed by IBM and Kimi K3.1 Pro is developed by Moonshot AI.

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