Gemini 1.5 Pro vs GPT-4o
Gemini 1.5 Pro and GPT-4o are closely matched at 12.5 and 14.6 on the LLM Stats Score. Gemini 1.5 Pro and GPT-4o cost the same.
Google · OpenAI · Updated for 2026
Which is better?
Gemini 1.5 Pro and GPT-4o are closely matched on the overall LLM Stats Score at 12.5 and 14.6.
In the 5 individual benchmarks reported for both models, Gemini 1.5 Pro wins 3; this is a narrower head-to-head signal than the composite indexes.
Gemini 1.5 Pro also accepts a larger context window (2,097,152 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Gemini 1.5 Pro
- you value its reported benchmark strengths — it wins 3 of 5 exact shared results
- you process long inputs — it offers a 2,097,152 token context window
Choose GPT-4o
- you want the most recent training data — it shipped Aug 2024
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
23 reported for Gemini 1.5 Pro · 38 for GPT-4o
Gemini 1.5 Pro outperforms in 3 benchmarks (MathVista, MMLU, MMLU-Pro), while GPT-4o is better at 2 benchmarks (GPQA, MMMU).
Gemini 1.5 Pro has a slight edge in benchmark performance.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Gemini 1.5 Pro ($2.50/1M tokens) costs the same as GPT-4o ($2.50/1M tokens).
For output processing, Gemini 1.5 Pro ($10.00/1M tokens) costs the same as GPT-4o ($10.00/1M tokens).
In conclusion, Gemini 1.5 Pro and GPT-4o cost the same.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Gemini 1.5 Pro accepts 2,097,152 input tokens compared to GPT-4o's 128,000 tokens. GPT-4o can generate longer responses up to 16,384 tokens, while Gemini 1.5 Pro is limited to 8,192 tokens.
Input capabilities
Documented input modalities across available providers
Both Gemini 1.5 Pro and GPT-4o support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Gemini 1.5 Pro
GPT-4o
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Gemini 1.5 Pro was released on 2024-05-01, while GPT-4o was released on 2024-08-06.
GPT-4o is 3 months newer than Gemini 1.5 Pro.
May 1, 2024
2.3 years ago
Aug 6, 2024
2.1 years ago
3mo newerKnowledge Cutoff
When training data ends
Gemini 1.5 Pro has a documented knowledge cutoff of 2023-11-01, while GPT-4o's cutoff date is not specified.
We can confirm Gemini 1.5 Pro's training data extends to 2023-11-01, but cannot make a direct comparison without GPT-4o's cutoff date.
Nov 2023
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Provider Availability
Gemini 1.5 Pro is available from Google. GPT-4o is available from Azure, OpenAI.
Gemini 1.5 Pro
GPT-4o
Outputs Comparison
Judge for yourself.
Run your own prompts against Gemini 1.5 Pro and GPT-4o side-by-side, then vote on the output you prefer.
FAQ
Common questions about Gemini 1.5 Pro vs GPT-4o.