Model Comparison

ChatGPT-4o Latest vs Gemini 2.5 Pro Preview 06-05

Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks. Gemini 2.5 Pro Preview 06-05 is 1.3x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

ChatGPT-4o Latest outperforms in 0 benchmarks, while Gemini 2.5 Pro Preview 06-05 is better at 1 benchmark (GPQA).

Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks.

Wed Apr 15 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 2.5 Pro Preview 06-05 costs less

For input processing, ChatGPT-4o Latest ($2.50/1M tokens) is 2.0x more expensive than Gemini 2.5 Pro Preview 06-05 ($1.25/1M tokens).

For output processing, ChatGPT-4o Latest ($10.00/1M tokens) costs the same as Gemini 2.5 Pro Preview 06-05 ($10.00/1M tokens).

In conclusion, ChatGPT-4o Latest is more expensive than Gemini 2.5 Pro Preview 06-05.*

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

Lowest available price from all providers
Wed Apr 15 2026 • llm-stats.com
OpenAI
ChatGPT-4o Latest
Input tokens$2.50
Output tokens$10.00
Best providerOpenAI
Google
Gemini 2.5 Pro Preview 06-05
Input tokens$1.25
Output tokens$10.00
Best providerGoogle
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 2.5 Pro Preview 06-05 accepts 1,048,576 input tokens compared to ChatGPT-4o Latest's 128,000 tokens. Gemini 2.5 Pro Preview 06-05 can generate longer responses up to 65,535 tokens, while ChatGPT-4o Latest is limited to 16,384 tokens.

OpenAI
ChatGPT-4o Latest
Input128,000 tokens
Output16,384 tokens
Google
Gemini 2.5 Pro Preview 06-05
Input1,048,576 tokens
Output65,535 tokens
Wed Apr 15 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both ChatGPT-4o Latest and Gemini 2.5 Pro Preview 06-05 support multimodal inputs.

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

ChatGPT-4o Latest

Text
Images
Audio
Video

Gemini 2.5 Pro Preview 06-05

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.

ChatGPT-4o Latest

Proprietary

Closed source

Gemini 2.5 Pro Preview 06-05

Proprietary

Closed source

Release Timeline

When each model was launched

ChatGPT-4o Latest was released on 2024-05-13, while Gemini 2.5 Pro Preview 06-05 was released on 2025-06-05.

Gemini 2.5 Pro Preview 06-05 is 13 months newer than ChatGPT-4o Latest.

ChatGPT-4o Latest

May 13, 2024

1.9 years ago

Gemini 2.5 Pro Preview 06-05

Jun 5, 2025

10 months ago

1.1yr newer

Knowledge Cutoff

When training data ends

Gemini 2.5 Pro Preview 06-05 has a documented knowledge cutoff of 2025-01-31, while ChatGPT-4o Latest's cutoff date is not specified.

We can confirm Gemini 2.5 Pro Preview 06-05's training data extends to 2025-01-31, but cannot make a direct comparison without ChatGPT-4o Latest's cutoff date.

ChatGPT-4o Latest

—

Gemini 2.5 Pro Preview 06-05

Jan 2025

Provider Availability

ChatGPT-4o Latest is available from OpenAI. Gemini 2.5 Pro Preview 06-05 is available from Google.

ChatGPT-4o Latest

openai logo
OpenAI
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M

Gemini 2.5 Pro Preview 06-05

google logo
Google
Input Price:Input: $1.25/1MOutput Price:Output: $10.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

OpenAI
Google
Larger context window (1,048,576 tokens)
Less expensive input tokens
Higher GPQA score (86.4% vs 84.0%)

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
ChatGPT-4o Latest
Google
Gemini 2.5 Pro Preview 06-05

FAQ

Common questions about ChatGPT-4o Latest vs Gemini 2.5 Pro Preview 06-05

Gemini 2.5 Pro Preview 06-05 significantly outperforms across most benchmarks. ChatGPT-4o Latest is made by OpenAI and Gemini 2.5 Pro Preview 06-05 is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
ChatGPT-4o Latest scores GPQA: 84.0%. Gemini 2.5 Pro Preview 06-05 scores Global-MMLU-Lite: 89.2%, AIME 2025: 88.0%, FACTS Grounding: 87.8%, GPQA: 86.4%, VideoMMMU: 83.6%.
Gemini 2.5 Pro Preview 06-05 is 2.0x cheaper for input tokens. ChatGPT-4o Latest costs $2.50/M input and $10.00/M output via openai. Gemini 2.5 Pro Preview 06-05 costs $1.25/M input and $10.00/M output via google.
ChatGPT-4o Latest supports 128K tokens and Gemini 2.5 Pro Preview 06-05 supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (128K vs 1.0M), input pricing ($2.50 vs $1.25/M). See the full comparison above for benchmark-by-benchmark results.
ChatGPT-4o Latest is developed by OpenAI and Gemini 2.5 Pro Preview 06-05 is developed by Google.