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Gemini 4 Carbon vs GPT-6.1 Sol

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 53.3.

Google · OpenAI · Updated for 2026

Which is better?

Gemini 4 Carbon leads the overall LLM Stats Score 59.0 to 53.3, 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 4 Carbon

  • overall performance matters — it scores 59.0 and ranks #2 on LLM Stats
  • your work emphasizes agents — 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

Choose GPT-6.1 Sol

  • you want predictable pricing at $2.00/M input and $10.00/M output

At a glance

The differences that matter most.

Gemini 4 Carbon
Google
GPT-6.1 Sol
OpenAI
Core performance indexes
LLM Stats Score
59.0
#2
53.3
#9
Reasoning
54.9
#5
50.8
#10
Coding
48.1
#3
39.5
#18
Agents
46.0
#2
38.4
#15
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
— / M
$2.00 / M
Output price
— / M
$10.00 / M
Context window
—
1,050,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

3 shared
Index
Gemini 4 Carbon
GPT-6.1 Sol
Vision
36.0#12
36.0#11
Tool use
35.8#3
23.7#49
Multimodal
38.0#6
35.5#13
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

16 reported for Gemini 4 Carbon · 17 for GPT-6.1 Sol

1 shared

Gemini 4 Carbon outperforms in 1 benchmarks (Terminal-Bench-Science 0.1), while GPT-6.1 Sol is better at 0 benchmarks.

Gemini 4 Carbon significantly outperforms across most benchmarks.

Thu Oct 29 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only GPT-6.1 Sol specifies input context (1,050,000 tokens). Only GPT-6.1 Sol specifies output context (128,000 tokens).

Google
Gemini 4 Carbon
Input- tokens
Output- tokens
OpenAI
GPT-6.1 Sol
Input1,050,000 tokens
Output128,000 tokens
Thu Oct 29 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Gemini 4 Carbon and GPT-6.1 Sol support multimodal inputs.

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

Gemini 4 Carbon

Text
Images
Audio
Video

GPT-6.1 Sol

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

GPT-6.1 Sol

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 4 Carbon was released on 2026-10-28, while GPT-6.1 Sol was released on 2026-09-29.

Gemini 4 Carbon is 1 month newer than GPT-6.1 Sol.

Gemini 4 Carbon

Oct 28, 2026

-2 days ago

4w newer
GPT-6.1 Sol

Sep 29, 2026

3 weeks ago

Knowledge Cutoff

When training data ends

GPT-6.1 Sol has a documented knowledge cutoff of 2026-04-30, while Gemini 4 Carbon's cutoff date is not specified.

We can confirm GPT-6.1 Sol's training data extends to 2026-04-30, but cannot make a direct comparison without Gemini 4 Carbon's cutoff date.

Gemini 4 Carbon

—

GPT-6.1 Sol

Apr 2026

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Gemini 4 Carbon and GPT-6.1 Sol side-by-side, then vote on the output you prefer.

Gemini 4 Carbon
✓ Preferred
GPT-6.1 Sol
Open in Playground

FAQ

Common questions about Gemini 4 Carbon vs GPT-6.1 Sol.

Which is better, Gemini 4 Carbon or GPT-6.1 Sol?

Gemini 4 Carbon leads the LLM Stats Score 59.0 to 53.3. Gemini 4 Carbon is made by Google and GPT-6.1 Sol 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 GPT-6.1 Sol 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%. GPT-6.1 Sol scores FrontierMath Tier 4 (v2): 100.0%, HealthBench Consensus: 96.0%, MMMU-Pro: 86.0%, DeepSWE 1.1: 75.2%, SimpleQA Verified: 73.9%.

What are the context window sizes for Gemini 4 Carbon and GPT-6.1 Sol?

Gemini 4 Carbon supports an unknown number of tokens and GPT-6.1 Sol supports 1.1M 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 GPT-6.1 Sol?

Key differences include LLM Stats Score (59.0 vs 53.3). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 4 Carbon and GPT-6.1 Sol?

Gemini 4 Carbon is developed by Google and GPT-6.1 Sol is developed by OpenAI.

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