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Gemini 3 Pro vs Gemini 4 Carbon

Gemini 4 Carbon leads the LLM Stats Score 58.8 to 38.1.

Google · Google · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 58.8 to 38.1, ranking #2 overall.

In the 1 individual benchmarks reported for both models, Gemini 4 Carbon 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 Gemini 3 Pro

  • you want predictable pricing at $2.00/M input and $12.00/M output

Choose Gemini 4 Carbon

  • overall performance matters — it scores 58.8 and ranks #2 on LLM Stats
  • your work emphasizes reasoning and coding — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Oct 2026

At a glance

The differences that matter most.

Gemini 3 Pro
Google
Gemini 4 Carbon
Google
Core performance indexes
LLM Stats Score
38.1
#88
58.8
#2
Reasoning
38.1
#85
54.4
#5
Coding
24.5
#95
48.3
#3
Agents
14.9
#117
45.8
#1
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$2.00 / M
— / M
Output price
$12.00 / M
— / M
Context window
1,048,576
—

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Gemini 3 Pro
Gemini 4 Carbon
Vision
26.7#55
36.0#13
Tool use
13.9#122
35.4#3
Multimodal
27.8#50
38.0#6
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

21 reported for Gemini 3 Pro · 16 for Gemini 4 Carbon

1 shared

Gemini 3 Pro outperforms in 0 benchmarks, while Gemini 4 Carbon is better at 0 benchmarks.

Both models are evenly matched across the benchmarks.

Wed Nov 04 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Gemini 3 Pro specifies input context (1,048,576 tokens). Only Gemini 3 Pro specifies output context (65,536 tokens).

Google
Gemini 3 Pro
Input1,048,576 tokens
Output65,536 tokens
Google
Gemini 4 Carbon
Input- tokens
Output- tokens
Wed Nov 04 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 3 Pro and Gemini 4 Carbon support multimodal inputs.

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

Gemini 3 Pro

Text
Images
Audio
Video

Gemini 4 Carbon

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 3 Pro

Proprietary

Closed source

Gemini 4 Carbon

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3 Pro was released on 2025-11-18, while Gemini 4 Carbon was released on 2026-10-28.

Gemini 4 Carbon is 11 months newer than Gemini 3 Pro.

Gemini 3 Pro

Nov 18, 2025

11 months ago

Gemini 4 Carbon

Oct 28, 2026

1 weeks ago

11mo newer

Knowledge Cutoff

When training data ends

Gemini 3 Pro has a documented knowledge cutoff of 2025-01-31, while Gemini 4 Carbon's cutoff date is not specified.

We can confirm Gemini 3 Pro's training data extends to 2025-01-31, but cannot make a direct comparison without Gemini 4 Carbon's cutoff date.

Gemini 3 Pro

Jan 2025

Gemini 4 Carbon

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Gemini 3 Pro and Gemini 4 Carbon side-by-side, then vote on the output you prefer.

Gemini 3 Pro
✓ Preferred
Gemini 4 Carbon
Open in Playground

FAQ

Common questions about Gemini 3 Pro vs Gemini 4 Carbon.

Which is better, Gemini 3 Pro or Gemini 4 Carbon?

Gemini 4 Carbon leads the LLM Stats Score 58.8 to 38.1. Gemini 3 Pro is made by Google and Gemini 4 Carbon is made by Google. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 3 Pro compare to Gemini 4 Carbon in benchmarks?

Gemini 3 Pro scores AIME 2025: 100.0%, Vending-Bench 2: 100.0%, Global PIQA: 93.4%, GPQA: 91.9%, MMMLU: 91.8%. 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%.

What are the context window sizes for Gemini 3 Pro and Gemini 4 Carbon?

Gemini 3 Pro supports 1.0M tokens and Gemini 4 Carbon supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 3 Pro and Gemini 4 Carbon?

Key differences include LLM Stats Score (38.1 vs 58.8). See the full comparison above for benchmark-by-benchmark results.

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