Model Comparison

Gemini 3.6 Flash vs GPT-4oWhich is better in 2026?

Comparing Gemini 3.6 Flash and GPT-4o across benchmarks, pricing, and capabilities.

Verdict: Gemini 3.6 Flash vs GPT-4o — which is better?

Gemini 3.6 Flash (by Google) and GPT-4o (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.

On price, Gemini 3.6 Flash is roughly 1.5x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 3.6 Flash also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

Choose Gemini 3.6 Flash if…

  • cost matters — it's about 1.5x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window
  • you want the most recent training data — it shipped Jul 2026

Choose GPT-4o if…

  • you want predictable pricing at $2.50/M input and $10.00/M output

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Gemini 3.6 Flash and GPT-4odon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 3.6 Flash costs less

For input processing, Gemini 3.6 Flash ($1.50/1M tokens) is 1.7x cheaper than GPT-4o ($2.50/1M tokens).

For output processing, Gemini 3.6 Flash ($7.50/1M tokens) is 1.3x cheaper than GPT-4o ($10.00/1M tokens).

In conclusion, GPT-4o is more expensive than Gemini 3.6 Flash.*

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

Lowest available price from all providers
Tue Jul 21 2026 • llm-stats.com
Google
Gemini 3.6 Flash
Input tokens$1.50
Output tokens$7.50
Best providerGoogle
OpenAI
GPT-4o
Input tokens$2.50
Output tokens$10.00
Best providerAzure
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 3.6 Flash accepts 1,048,576 input tokens compared to GPT-4o's 128,000 tokens. Gemini 3.6 Flash can generate longer responses up to 65,536 tokens, while GPT-4o is limited to 4,096 tokens.

Google
Gemini 3.6 Flash
Input1,048,576 tokens
Output65,536 tokens
OpenAI
GPT-4o
Input128,000 tokens
Output4,096 tokens
Tue Jul 21 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 3.6 Flash and GPT-4o support multimodal inputs.

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

Gemini 3.6 Flash

Text
Images
Audio
Video

GPT-4o

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 3.6 Flash

Proprietary

Closed source

GPT-4o

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 3.6 Flash was released on 2026-07-21, while GPT-4o was released on 2024-05-13.

Gemini 3.6 Flash is 27 months newer than GPT-4o.

Gemini 3.6 Flash

Jul 21, 2026

0 days ago

2.2yr newer
GPT-4o

May 13, 2024

2.2 years ago

Knowledge Cutoff

When training data ends

Gemini 3.6 Flash has a documented knowledge cutoff of 2026-03-31, while GPT-4o's cutoff date is not specified.

We can confirm Gemini 3.6 Flash's training data extends to 2026-03-31, but cannot make a direct comparison without GPT-4o's cutoff date.

Gemini 3.6 Flash

Mar 2026

GPT-4o

—

Provider Availability

Gemini 3.6 Flash is available from Google. GPT-4o is available from Azure, OpenAI.

Gemini 3.6 Flash

google logo
Google
Input Price:Input: $1.50/1MOutput Price:Output: $7.50/1M

GPT-4o

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

Outputs Comparison

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Key Takeaways

Google
Larger context window (1,048,576 tokens)
Less expensive input tokens
Less expensive output tokens
OpenAI

No standout differentiators in the data we have for this pair.

GoogleGemini 3.6 Flash
OpenAIGPT-4o
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Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Gemini 3.6 Flash and GPT-4o side-by-side, then vote on the output you prefer.

Gemini 3.6 Flash
✓ Preferred
GPT-4o
Open in Playground
AI Model Comparison Table
Feature
Google
Gemini 3.6 Flash
OpenAI
GPT-4o

FAQ

Common questions about Gemini 3.6 Flash vs GPT-4o.

Which is better, Gemini 3.6 Flash or GPT-4o?

Gemini 3.6 Flash (Google) and GPT-4o (OpenAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Gemini 3.6 Flash compare to GPT-4o in benchmarks?

Gemini 3.6 Flash scores CharXiv-R: 89.4%, OSWorld-Verified: 83.0%, Terminal-Bench 2.1: 78.0%, MLE-Bench: 63.9%, SWE-Bench Pro: 58.7%. GPT-4o scores MGSM: 90.5%, HumanEval: 90.2%, MMLU: 88.7%, DROP: 83.4%, MATH: 76.6%.

Is Gemini 3.6 Flash cheaper than GPT-4o?

Gemini 3.6 Flash is 1.7x cheaper for input tokens. Gemini 3.6 Flash costs $1.50/M input and $7.50/M output via google. GPT-4o costs $2.50/M input and $10.00/M output via azure.

What are the context window sizes for Gemini 3.6 Flash and GPT-4o?

Gemini 3.6 Flash supports 1.0M tokens and GPT-4o 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 3.6 Flash and GPT-4o?

Key differences include context window (1.0M vs 128K), input pricing ($1.50 vs $2.50/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 3.6 Flash and GPT-4o?

Gemini 3.6 Flash is developed by Google and GPT-4o is developed by OpenAI.

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