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Gemini 4 Carbon vs Grok-3

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 29.7.

Google · xAI · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 59.0 to 29.7, 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 Grok-3

  • you want predictable pricing at $3.00/M input and $15.00/M output

At a glance

The differences that matter most.

Gemini 4 Carbon
Google
Grok-3
xAI
Core performance indexes
LLM Stats Score
59.0
#2
29.7
#151
Reasoning
54.9
#5
29.5
#149
Coding
48.1
#3
17.4
#143
Cost, coverage & limits
Benchmark wins
—
—
Input price
— / M
$3.00 / M
Output price
— / M
$15.00 / M
Context window
—
128,000

Individual benchmarks

16 reported for Gemini 4 Carbon · 5 for Grok-3

No common benchmarks found

Gemini 4 Carbon and Grok-3don'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 Grok-3 specifies input context (128,000 tokens). Only Grok-3 specifies output context (8,000 tokens).

Google
Gemini 4 Carbon
Input- tokens
Output- tokens
xAI
Grok-3
Input128,000 tokens
Output8,000 tokens
Thu Oct 29 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 4 Carbon and Grok-3 support multimodal inputs.

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

Gemini 4 Carbon

Text
Images
Audio
Video

Grok-3

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

Grok-3

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 4 Carbon was released on 2026-10-28, while Grok-3 was released on 2025-02-17.

Gemini 4 Carbon is 21 months newer than Grok-3.

Gemini 4 Carbon

Oct 28, 2026

-1 days ago

1.7yr newer
Grok-3

Feb 17, 2025

1.7 years ago

Knowledge Cutoff

When training data ends

Grok-3 has a documented knowledge cutoff of 2024-11-17, while Gemini 4 Carbon's cutoff date is not specified.

We can confirm Grok-3's training data extends to 2024-11-17, but cannot make a direct comparison without Gemini 4 Carbon's cutoff date.

Gemini 4 Carbon

—

Grok-3

Nov 2024

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

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

Gemini 4 Carbon
✓ Preferred
Grok-3
Open in Playground

FAQ

Common questions about Gemini 4 Carbon vs Grok-3.

Which is better, Gemini 4 Carbon or Grok-3?

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 29.7. Gemini 4 Carbon is made by Google and Grok-3 is made by xAI. 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 Grok-3 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%. Grok-3 scores AIME 2024: 93.3%, AIME 2025: 93.3%, GPQA: 84.6%, LiveCodeBench: 79.4%, MMMU: 78.0%.

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

Gemini 4 Carbon supports an unknown number of tokens and Grok-3 supports 128K 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 Grok-3?

Key differences include LLM Stats Score (59.0 vs 29.7). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 4 Carbon and Grok-3?

Gemini 4 Carbon is developed by Google and Grok-3 is developed by xAI.

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