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IBM Granite 4.2 3B vs o1

IBM Granite 4.2 3B and o1 are closely matched at 15.6 and 21.2 on the LLM Stats Score.

IBM · OpenAI · Updated for 2026

Which is better?

IBM Granite 4.2 3B and o1 are closely matched on the overall LLM Stats Score at 15.6 and 21.2.

In the 1 individual benchmarks reported for both models, o1 wins 1; this is a narrower head-to-head signal than the composite indexes.

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

Choose IBM Granite 4.2 3B

  • you want the most recent training data — it shipped Aug 2026
  • you need open weights you can self-host or fine-tune

Choose o1

  • your work emphasizes reasoning — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results

At a glance

The differences that matter most.

Core performance indexes
15.6
#213
21.2
#177
12.0
#234
21.6
#167
-6.7
#247
4.8
#192
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
— / M
$15.00 / M
Output price
— / M
$60.00 / M
Context window
200,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
IBM Granite 4.2 3B
o1
13.7#216
24.2#112
5.3#144
13.0#92
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

13 reported for IBM Granite 4.2 3B · 19 for o1

1 shared

IBM Granite 4.2 3B outperforms in 0 benchmarks, while o1 is better at 1 benchmark (GPQA).

o1 significantly outperforms across most benchmarks.

Tue Sep 01 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only o1 specifies input context (200,000 tokens). Only o1 specifies output context (100,000 tokens).

IBM
IBM Granite 4.2 3B
Input- tokens
Output- tokens
OpenAI
o1
Input200,000 tokens
Output100,000 tokens
Tue Sep 01 2026 • llm-stats.com

License

Usage and distribution terms

IBM Granite 4.2 3B is licensed under Apache 2.0, while o1 uses a proprietary license.

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

IBM Granite 4.2 3B

Apache 2.0

Open weights

o1

Proprietary

Closed source

Release Timeline

When each model was launched

IBM Granite 4.2 3B was released on 2026-08-25, while o1 was released on 2024-12-17.

IBM Granite 4.2 3B is 21 months newer than o1.

IBM Granite 4.2 3B

Aug 25, 2026

6 days ago

1.7yr newer
o1

Dec 17, 2024

1.7 years 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

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against IBM Granite 4.2 3B and o1 side-by-side, then vote on the output you prefer.

IBM Granite 4.2 3B
✓ Preferred
o1
Open in Playground

FAQ

Common questions about IBM Granite 4.2 3B vs o1.

Which is better, IBM Granite 4.2 3B or o1?

IBM Granite 4.2 3B and o1 are closely matched on the LLM Stats Score at 15.6 and 21.2. IBM Granite 4.2 3B is made by IBM and o1 is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does IBM Granite 4.2 3B compare to o1 in benchmarks?

IBM Granite 4.2 3B scores AIME 2025: 78.3%, IFBench: 74.3%, LiveCodeBench v6: 69.7%, MMLU-Pro: 67.8%, RULER 64k: 67.5%. o1 scores GSM8k: 97.1%, MATH: 96.4%, GPQA Physics: 92.8%, MMLU: 91.8%, MGSM: 89.3%.

What are the context window sizes for IBM Granite 4.2 3B and o1?

IBM Granite 4.2 3B supports an unknown number of tokens and o1 supports 200K 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 3B and o1?

Key differences include LLM Stats Score (15.6 vs 21.2), licensing (Apache 2.0 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes IBM Granite 4.2 3B and o1?

IBM Granite 4.2 3B is developed by IBM and o1 is developed by OpenAI.