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Gemini 4 Carbon vs o4-mini

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 26.8.

Google · OpenAI · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 59.0 to 26.8, ranking #2 overall.

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

Choose Gemini 4 Carbon

  • overall performance matters — it scores 59.0 and ranks #2 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

Choose o4-mini

  • you want predictable pricing at $1.10/M input and $4.40/M output

At a glance

The differences that matter most.

Gemini 4 Carbon
Google
o4-mini
OpenAI
Core performance indexes
LLM Stats Score
59.0
#2
26.8
#175
Reasoning
54.9
#5
26.8
#169
Coding
48.1
#3
11.7
#181
Agents
46.0
#2
5.9
#173
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$1.10 / M
Output price
— / M
$4.40 / M
Context window
—
200,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Gemini 4 Carbon
o4-mini
Vision
36.0#12
15.5#111
Tool use
35.8#3
11.4#136
Multimodal
38.0#6
21.4#82
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Gemini 4 Carbon · 14 for o4-mini

No common benchmarks found

Gemini 4 Carbon and o4-minidon'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 o4-mini specifies input context (200,000 tokens). Only o4-mini specifies output context (100,000 tokens).

Google
Gemini 4 Carbon
Input- tokens
Output- tokens
OpenAI
o4-mini
Input200,000 tokens
Output100,000 tokens
Fri Oct 30 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 4 Carbon and o4-mini support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Gemini 4 Carbon

Text
Images
Audio
Video

o4-mini

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Gemini 4 Carbon

Proprietary

Closed source

o4-mini

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 4 Carbon was released on 2026-10-28, while o4-mini was released on 2025-04-16.

Gemini 4 Carbon is 19 months newer than o4-mini.

Gemini 4 Carbon

Oct 28, 2026

2 days ago

1.5yr newer
o4-mini

Apr 16, 2025

1.5 years ago

Knowledge Cutoff

When training data ends

o4-mini has a documented knowledge cutoff of 2024-05-31, while Gemini 4 Carbon's cutoff date is not specified.

We can confirm o4-mini's training data extends to 2024-05-31, but cannot make a direct comparison without Gemini 4 Carbon's cutoff date.

Gemini 4 Carbon

—

o4-mini

May 2024

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Gemini 4 Carbon and o4-mini side-by-side, then vote on the output you prefer.

Gemini 4 Carbon
✓ Preferred
o4-mini
Open in Playground

FAQ

Common questions about Gemini 4 Carbon vs o4-mini.

Which is better, Gemini 4 Carbon or o4-mini?

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 26.8. Gemini 4 Carbon is made by Google and o4-mini is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 4 Carbon compare to o4-mini in benchmarks?

Gemini 4 Carbon scores Gray Swan IPI Benchmark: 100.0%, Vending-Bench 2: 100.0%, Graphwalks BFS >128k: 96.2%, WebDev Arena: 88.4%, SEC-bench Pro: 88.2%. o4-mini scores AIME 2024: 93.4%, AIME 2025: 92.7%, MathVista: 84.3%, MMMU: 81.6%, GPQA: 81.4%.

What are the context window sizes for Gemini 4 Carbon and o4-mini?

Gemini 4 Carbon supports an unknown number of tokens and o4-mini 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 Gemini 4 Carbon and o4-mini?

Key differences include LLM Stats Score (59.0 vs 26.8). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 4 Carbon and o4-mini?

Gemini 4 Carbon is developed by Google and o4-mini is developed by OpenAI.

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