Model Comparison

Gemini 3.1 Pro vs ChatGPT-4o LatestWhich is better in 2026?

Gemini 3.1 Pro significantly outperforms across most benchmarks. ChatGPT-4o Latest is 1.3x cheaper per token.

Verdict: Gemini 3.1 Pro vs ChatGPT-4o Latest — which is better?

Gemini 3.1 Pro (by Google) and ChatGPT-4o Latest (by OpenAI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Gemini 3.1 Pro outperforms in 1 benchmarks (GPQA), while ChatGPT-4o Latest is better at 0 benchmarks. Gemini 3.1 Pro significantly outperforms across most benchmarks.

On price, ChatGPT-4o Latest is roughly 1.3x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.1 Pro also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Gemini 3.1 Pro if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Feb 2026

Choose ChatGPT-4o Latest if…

  • cost matters — it's about 1.3x cheaper per token
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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Gemini 3.1 Pro outperforms in 1 benchmarks (GPQA), while ChatGPT-4o Latest is better at 0 benchmarks.

Gemini 3.1 Pro significantly outperforms across most benchmarks.

Sun Jun 07 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

ChatGPT-4o Latest costs less

For input processing, Gemini 3.1 Pro ($2.50/1M tokens) costs the same as ChatGPT-4o Latest ($2.50/1M tokens).

For output processing, Gemini 3.1 Pro ($15.00/1M tokens) is 1.5x more expensive than ChatGPT-4o Latest ($10.00/1M tokens).

In conclusion, Gemini 3.1 Pro is more expensive than ChatGPT-4o Latest.*

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

Lowest available price from all providers
Sun Jun 07 2026 • llm-stats.com
Google
Gemini 3.1 Pro
Input tokens$2.50
Output tokens$15.00
Best providerGoogle
OpenAI
ChatGPT-4o Latest
Input tokens$2.50
Output tokens$10.00
Best providerOpenAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 3.1 Pro accepts 1,048,576 input tokens compared to ChatGPT-4o Latest's 128,000 tokens. Gemini 3.1 Pro can generate longer responses up to 65,536 tokens, while ChatGPT-4o Latest is limited to 16,384 tokens.

Google
Gemini 3.1 Pro
Input1,048,576 tokens
Output65,536 tokens
OpenAI
ChatGPT-4o Latest
Input128,000 tokens
Output16,384 tokens
Sun Jun 07 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3.1 Pro and ChatGPT-4o Latest support multimodal inputs.

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

Gemini 3.1 Pro

Text
Images
Audio
Video

ChatGPT-4o Latest

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 3.1 Pro

Proprietary

Closed source

ChatGPT-4o Latest

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.1 Pro was released on 2026-02-19, while ChatGPT-4o Latest was released on 2024-05-13.

Gemini 3.1 Pro is 22 months newer than ChatGPT-4o Latest.

Gemini 3.1 Pro

Feb 19, 2026

3 months ago

1.8yr newer
ChatGPT-4o Latest

May 13, 2024

2.1 years ago

Knowledge Cutoff

When training data ends

Gemini 3.1 Pro has a documented knowledge cutoff of 2025-01-31, while ChatGPT-4o Latest's cutoff date is not specified.

We can confirm Gemini 3.1 Pro's training data extends to 2025-01-31, but cannot make a direct comparison without ChatGPT-4o Latest's cutoff date.

Gemini 3.1 Pro

Jan 2025

ChatGPT-4o Latest

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Provider Availability

Gemini 3.1 Pro is available from Google. ChatGPT-4o Latest is available from OpenAI.

Gemini 3.1 Pro

google logo
Google
Input Price:Input: $2.50/1MOutput Price:Output: $15.00/1M

ChatGPT-4o Latest

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Google
Larger context window (1,048,576 tokens)
Higher GPQA score (94.3% vs 84.0%)
OpenAI
Less expensive output tokens

Detailed Comparison

AI Model Comparison Table
Feature
Google
Gemini 3.1 Pro
OpenAI
ChatGPT-4o Latest

FAQ

Common questions about Gemini 3.1 Pro vs ChatGPT-4o Latest.

Which is better, Gemini 3.1 Pro or ChatGPT-4o Latest?

Gemini 3.1 Pro significantly outperforms across most benchmarks. Gemini 3.1 Pro is made by Google and ChatGPT-4o Latest is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 3.1 Pro compare to ChatGPT-4o Latest in benchmarks?

Gemini 3.1 Pro scores t2-bench: 99.3%, LiveCodeBench Pro: 96.2%, GPQA: 94.3%, MMMLU: 92.6%, BrowseComp: 85.9%. ChatGPT-4o Latest scores GPQA: 84.0%.

Is Gemini 3.1 Pro cheaper than ChatGPT-4o Latest?

Both models cost $2.50 per million input tokens.

What are the context window sizes for Gemini 3.1 Pro and ChatGPT-4o Latest?

Gemini 3.1 Pro supports 1.0M tokens and ChatGPT-4o Latest 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 3.1 Pro and ChatGPT-4o Latest?

Key differences include context window (1.0M vs 128K). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.1 Pro and ChatGPT-4o Latest?

Gemini 3.1 Pro is developed by Google and ChatGPT-4o Latest is developed by OpenAI.

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