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GPT-4o vs IBM Granite 4.2 3B

GPT-4o and IBM Granite 4.2 3B are closely matched at 11.5 and 15.5 on the LLM Stats Score. IBM Granite 4.2 3B is 83.3x cheaper per token.

OpenAI · IBM · Updated for 2026

Which is better?

GPT-4o and IBM Granite 4.2 3B are closely matched on the overall LLM Stats Score at 11.5 and 15.5.

The models split the 2 individual benchmarks reported for both models evenly.

On price, IBM Granite 4.2 3B is roughly 83.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

IBM Granite 4.2 3B also accepts a larger context window (131,072 input tokens), making it the stronger choice for long documents and large codebases.

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

Choose GPT-4o

  • you want predictable pricing at $2.50/M input and $10.00/M output

Choose IBM Granite 4.2 3B

  • cost matters — it's about 83.3x cheaper per token
  • you process long inputs — it offers a 131,072 token context window
  • you want the most recent training data — it shipped Aug 2026
  • you need open weights you can self-host or fine-tune

At a glance

The differences that matter most.

Core performance indexes
11.5
#265
15.5
#238
12.2
#254
11.8
#257
11.7
#160
-6.9
#270
Cost, coverage & limits
Benchmark wins
1 of 2
1 of 2
Input price
$2.50 / M
$0.03 / M
Output price
$10.00 / M
$0.12 / M
Context window
128,000
131,072

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
GPT-4o
IBM Granite 4.2 3B
18.1#187
13.7#226
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

8 reported for GPT-4o · 13 for IBM Granite 4.2 3B

2 shared

GPT-4o outperforms in 1 benchmarks (MMLU-Pro), while IBM Granite 4.2 3B is better at 1 benchmark (GPQA).

Both models are evenly matched across the benchmarks.

Mon Oct 05 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

IBM Granite 4.2 3B costs less

For input processing, GPT-4o ($2.50/1M tokens) is 83.3x more expensive than IBM Granite 4.2 3B ($0.03/1M tokens).

For output processing, GPT-4o ($10.00/1M tokens) is 83.3x more expensive than IBM Granite 4.2 3B ($0.12/1M tokens).

In conclusion, GPT-4o is more expensive than IBM Granite 4.2 3B.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Mon Oct 05 2026 • llm-stats.com
OpenAI
GPT-4o
Input tokens$2.50
Output tokens$10.00
Best providerAzure
IBM
IBM Granite 4.2 3B
Input tokens$0.03
Output tokens$0.12
Best providerDeepinfra
Notice missing or incorrect data?

Context Window

Maximum input and output token capacity

IBM Granite 4.2 3B accepts 131,072 input tokens compared to GPT-4o's 128,000 tokens. IBM Granite 4.2 3B can generate longer responses up to 131,072 tokens, while GPT-4o is limited to 4,096 tokens.

OpenAI
GPT-4o
Input128,000 tokens
Output4,096 tokens
IBM
IBM Granite 4.2 3B
Input131,072 tokens
Output131,072 tokens
Mon Oct 05 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

GPT-4o supports multimodal inputs, whereas IBM Granite 4.2 3B does not.

GPT-4o can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-4o

Text
Images
Audio
Video

IBM Granite 4.2 3B

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-4o is licensed under a proprietary license, while IBM Granite 4.2 3B uses Apache 2.0.

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

GPT-4o

Proprietary

Closed source

IBM Granite 4.2 3B

Apache 2.0

Open weights

Release Timeline

When each model was launched

GPT-4o was released on 2024-05-13, while IBM Granite 4.2 3B was released on 2026-08-25.

IBM Granite 4.2 3B is 28 months newer than GPT-4o.

GPT-4o

May 13, 2024

2.4 years ago

IBM Granite 4.2 3B

Aug 25, 2026

1 months ago

2.3yr newer

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

Provider Availability

GPT-4o is available from Azure, OpenAI. IBM Granite 4.2 3B is available from DeepInfra.

GPT-4o

azure logo
Azure
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M
openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M

IBM Granite 4.2 3B

deepinfra logo
Deepinfra
Input Price:Input: $0.03/1MOutput Price:Output: $0.12/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against GPT-4o and IBM Granite 4.2 3B side-by-side, then vote on the output you prefer.

GPT-4o
✓ Preferred
IBM Granite 4.2 3B
Open in Playground

FAQ

Common questions about GPT-4o vs IBM Granite 4.2 3B.

Which is better, GPT-4o or IBM Granite 4.2 3B?

GPT-4o and IBM Granite 4.2 3B are closely matched on the LLM Stats Score at 11.5 and 15.5. GPT-4o is made by OpenAI and IBM Granite 4.2 3B is made by IBM. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does GPT-4o compare to IBM Granite 4.2 3B in benchmarks?

GPT-4o scores MGSM: 90.5%, HumanEval: 90.2%, MMLU: 88.7%, DROP: 83.4%, MATH: 76.6%. 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%.

Is GPT-4o cheaper than IBM Granite 4.2 3B?

IBM Granite 4.2 3B is 83.3x cheaper for input tokens. GPT-4o costs $2.50/M input and $10.00/M output via azure. IBM Granite 4.2 3B costs $0.03/M input and $0.12/M output via deepinfra.

What are the context window sizes for GPT-4o and IBM Granite 4.2 3B?

GPT-4o supports 128K tokens and IBM Granite 4.2 3B supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT-4o and IBM Granite 4.2 3B?

Key differences include LLM Stats Score (11.5 vs 15.5), context window (128K vs 131K), input pricing ($2.50 vs $0.03/M), multimodal support (yes vs no), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT-4o and IBM Granite 4.2 3B?

GPT-4o is developed by OpenAI and IBM Granite 4.2 3B is developed by IBM.