Model Comparison

Gemini 1.5 Pro vs GPT-4Which is better in 2026?

Gemini 1.5 Pro has a slight edge in benchmark performance. Gemini 1.5 Pro is 8.6x cheaper per token.

Verdict: Gemini 1.5 Pro vs GPT-4 — which is better?

Gemini 1.5 Pro (by Google) and GPT-4 (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 1.5 Pro outperforms in 4 benchmarks (GPQA, HumanEval, MATH, MGSM), while GPT-4 is better at 3 benchmarks (DROP, HellaSwag, MMLU). Gemini 1.5 Pro has a slight edge in benchmark performance.

On price, Gemini 1.5 Pro is roughly 8.6x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

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.

Choose Gemini 1.5 Pro if…

  • you want the strongest raw capability — it leads on 4 of 7 shared benchmarks
  • cost matters — it's about 8.6x cheaper per token
  • you process long inputs — it offers a 2,097,152 token context window
  • you want the most recent training data — it shipped May 2024

Choose GPT-4 if…

  • you want predictable pricing at $30.00/M input and $60.00/M output

Performance Benchmarks

Comparative analysis across standard metrics

7 benchmarks

Gemini 1.5 Pro outperforms in 4 benchmarks (GPQA, HumanEval, MATH, MGSM), while GPT-4 is better at 3 benchmarks (DROP, HellaSwag, MMLU).

Gemini 1.5 Pro has a slight edge in benchmark performance.

Sun Jul 12 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 1.5 Pro costs less

For input processing, Gemini 1.5 Pro ($2.50/1M tokens) is 12.0x cheaper than GPT-4 ($30.00/1M tokens).

For output processing, Gemini 1.5 Pro ($10.00/1M tokens) is 6.0x cheaper than GPT-4 ($60.00/1M tokens).

In conclusion, GPT-4 is more expensive than Gemini 1.5 Pro.*

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

Lowest available price from all providers
Sun Jul 12 2026 • llm-stats.com
Google
Gemini 1.5 Pro
Input tokens$2.50
Output tokens$10.00
Best providerGoogle
OpenAI
GPT-4
Input tokens$30.00
Output tokens$60.00
Best providerAzure
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 1.5 Pro accepts 2,097,152 input tokens compared to GPT-4's 32,768 tokens. GPT-4 can generate longer responses up to 32,768 tokens, while Gemini 1.5 Pro is limited to 8,192 tokens.

Google
Gemini 1.5 Pro
Input2,097,152 tokens
Output8,192 tokens
OpenAI
GPT-4
Input32,768 tokens
Output32,768 tokens
Sun Jul 12 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Gemini 1.5 Pro and GPT-4 support multimodal inputs.

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

Gemini 1.5 Pro

Text
Images
Audio
Video

GPT-4

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 1.5 Pro

Proprietary

Closed source

GPT-4

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 1.5 Pro was released on 2024-05-01, while GPT-4 was released on 2023-06-13.

Gemini 1.5 Pro is 11 months newer than GPT-4.

Gemini 1.5 Pro

May 1, 2024

2.2 years ago

10mo newer
GPT-4

Jun 13, 2023

3.1 years ago

Knowledge Cutoff

When training data ends

Gemini 1.5 Pro has a knowledge cutoff of 2023-11-01, while GPT-4 has a cutoff of 2022-12-31.

Gemini 1.5 Pro has more recent training data (up to 2023-11-01), making it potentially better informed about events through that date compared to GPT-4 (2022-12-31).

Gemini 1.5 Pro

Nov 2023

11 mo newer
GPT-4

Dec 2022

Provider Availability

Gemini 1.5 Pro is available from Google. GPT-4 is available from Azure, OpenAI.

Gemini 1.5 Pro

google logo
Google
Input Price:Input: $2.50/1MOutput Price:Output: $10.00/1M

GPT-4

azure logo
Azure
Input Price:Input: $30.00/1MOutput Price:Output: $60.00/1M
openai logo
OpenAI
Input Price:Input: $30.00/1MOutput Price:Output: $60.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Google
Larger context window (2,097,152 tokens)
Less expensive input tokens
Less expensive output tokens
Higher GPQA score (59.1% vs 35.7%)
Higher HumanEval score (84.1% vs 67.0%)
Higher MATH score (86.5% vs 42.0%)
Higher MGSM score (87.5% vs 74.5%)
OpenAI
Higher DROP score (80.9% vs 74.9%)
Higher HellaSwag score (95.3% vs 93.3%)
Higher MMLU score (86.4% vs 85.9%)

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Gemini 1.5 Pro and GPT-4 side-by-side, then vote on the output you prefer.

Gemini 1.5 Pro
✓ Preferred
GPT-4
Open in Playground
AI Model Comparison Table
Feature
Google
Gemini 1.5 Pro
OpenAI
GPT-4

FAQ

Common questions about Gemini 1.5 Pro vs GPT-4.

Which is better, Gemini 1.5 Pro or GPT-4?

Gemini 1.5 Pro has a slight edge in benchmark performance. Gemini 1.5 Pro is made by Google and GPT-4 is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Gemini 1.5 Pro compare to GPT-4 in benchmarks?

Gemini 1.5 Pro scores XSTest: 98.8%, FLEURS: 93.3%, HellaSwag: 93.3%, GSM8k: 90.8%, BIG-Bench Hard: 89.2%. GPT-4 scores AI2 Reasoning Challenge (ARC): 96.3%, HellaSwag: 95.3%, Uniform Bar Exam: 90.0%, SAT Math: 89.0%, LSAT: 88.0%.

Is Gemini 1.5 Pro cheaper than GPT-4?

Gemini 1.5 Pro is 12.0x cheaper for input tokens. Gemini 1.5 Pro costs $2.50/M input and $10.00/M output via google. GPT-4 costs $30.00/M input and $60.00/M output via azure.

What are the context window sizes for Gemini 1.5 Pro and GPT-4?

Gemini 1.5 Pro supports 2.1M tokens and GPT-4 supports 33K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Gemini 1.5 Pro and GPT-4?

Key differences include context window (2.1M vs 33K), input pricing ($2.50 vs $30.00/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 1.5 Pro and GPT-4?

Gemini 1.5 Pro is developed by Google and GPT-4 is developed by OpenAI.

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