IBM Granite 4.2 30B vs o3
o3 leads the LLM Stats Score 31.3 to 24.0.
IBM · OpenAI · Updated for 2026
Which is better?
o3 leads the overall LLM Stats Score 31.3 to 24.0, ranking #100 overall.
In the 3 individual benchmarks reported for both models, o3 wins 2; 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 30B
- you want the most recent training data — it shipped Aug 2026
- you need open weights you can self-host or fine-tune
Choose o3
- overall performance matters — it scores 31.3 and ranks #100 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 2 of 3 exact shared results
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
18 reported for IBM Granite 4.2 30B · 22 for o3
IBM Granite 4.2 30B outperforms in 1 benchmarks (AIME 2025), while o3 is better at 2 benchmarks (GPQA, SWE-Bench Verified).
o3 shows notably better performance in the majority of benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only o3 specifies input context (200,000 tokens). Only o3 specifies output context (100,000 tokens).
Input capabilities
Documented input modalities across available providers
o3 supports multimodal inputs, whereas IBM Granite 4.2 30B does not.
o3 can handle both text and other forms of data like images, making it suitable for multimodal applications.
IBM Granite 4.2 30B
o3
License
Usage and distribution terms
IBM Granite 4.2 30B is licensed under Apache 2.0, while o3 uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Apache 2.0
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
IBM Granite 4.2 30B was released on 2026-08-25, while o3 was released on 2025-04-16.
IBM Granite 4.2 30B is 17 months newer than o3.
Aug 25, 2026
6 days ago
1.4yr newerApr 16, 2025
1.4 years ago
Knowledge Cutoff
When training data ends
o3 has a documented knowledge cutoff of 2024-05-31, while IBM Granite 4.2 30B's cutoff date is not specified.
We can confirm o3's training data extends to 2024-05-31, but cannot make a direct comparison without IBM Granite 4.2 30B's cutoff date.
—
May 2024
Outputs Comparison
Judge for yourself.
Run your own prompts against IBM Granite 4.2 30B and o3 side-by-side, then vote on the output you prefer.
FAQ
Common questions about IBM Granite 4.2 30B vs o3.