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Gemini 1.5 Pro vs o1-mini

Gemini 1.5 Pro and o1-mini are closely matched at 12.1 and 10.1 on the LLM Stats Score. Gemini 1.5 Pro is 1.2x cheaper per token.

Google · OpenAI · Updated for 2026

Which is better?

Gemini 1.5 Pro and o1-mini are closely matched on the overall LLM Stats Score at 12.1 and 10.1.

In the 3 individual benchmarks reported for both models, o1-mini wins 2; this is a narrower head-to-head signal than the composite indexes.

On price, Gemini 1.5 Pro is roughly 1.2x 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.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Gemini 1.5 Pro

  • cost matters — it's about 1.2x cheaper per token
  • you process long inputs — it offers a 2,097,152 token context window

Choose o1-mini

  • you value its reported benchmark strengths — it wins 2 of 3 exact shared results
  • you want the most recent training data — it shipped Sep 2024

At a glance

The differences that matter most.

Core performance indexes
12.1
#253
10.1
#264
11.8
#248
10.3
#258
4.4
#206
14.4
#132
Cost, coverage & limits
Benchmark wins
1 of 3
2 of 3
Input price
$2.50 / M
$3.00 / M
Output price
$10.00 / M
$12.00 / M
Context window
2,097,152
128,000

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
Gemini 1.5 Pro
o1-mini
16.9#199
10.9#246
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

23 reported for Gemini 1.5 Pro · 6 for o1-mini

3 shared

Gemini 1.5 Pro outperforms in 1 benchmarks (MMLU), while o1-mini is better at 2 benchmarks (GPQA, HumanEval).

o1-mini shows notably better performance in the majority of benchmarks.

Thu Sep 10 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

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 1.2x cheaper than o1-mini ($3.00/1M tokens).

For output processing, Gemini 1.5 Pro ($10.00/1M tokens) is 1.2x cheaper than o1-mini ($12.00/1M tokens).

In conclusion, o1-mini is more expensive than Gemini 1.5 Pro.*

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

Lowest available price from all providers
Thu Sep 10 2026 • llm-stats.com
Google
Gemini 1.5 Pro
Input tokens$2.50
Output tokens$10.00
Best providerGoogle
OpenAI
o1-mini
Input tokens$3.00
Output tokens$12.00
Best providerOpenAI
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 o1-mini's 128,000 tokens. o1-mini can generate longer responses up to 65,536 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
o1-mini
Input128,000 tokens
Output65,536 tokens
Thu Sep 10 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Gemini 1.5 Pro supports multimodal inputs, whereas o1-mini does not.

Gemini 1.5 Pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

Gemini 1.5 Pro

Text
Images
Audio
Video

o1-mini

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

o1-mini

Proprietary

Closed source

Release Timeline

When each model was launched

Gemini 1.5 Pro was released on 2024-05-01, while o1-mini was released on 2024-09-12.

o1-mini is 4 months newer than Gemini 1.5 Pro.

Gemini 1.5 Pro

May 1, 2024

2.4 years ago

o1-mini

Sep 12, 2024

2.0 years ago

4mo newer

Knowledge Cutoff

When training data ends

Gemini 1.5 Pro has a documented knowledge cutoff of 2023-11-01, while o1-mini'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 o1-mini's cutoff date.

Gemini 1.5 Pro

Nov 2023

o1-mini

Provider Availability

Gemini 1.5 Pro is available from Google. o1-mini is available from OpenAI, Azure.

Gemini 1.5 Pro

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

o1-mini

openai logo
OpenAI
Input Price:Input: $3.00/1MOutput Price:Output: $12.00/1M
azure logo
Azure
Input Price:Input: $3.30/1MOutput Price:Output: $13.20/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

Run your own prompts against Gemini 1.5 Pro and o1-mini side-by-side, then vote on the output you prefer.

Gemini 1.5 Pro
✓ Preferred
o1-mini
Open in Playground

FAQ

Common questions about Gemini 1.5 Pro vs o1-mini.

Which is better, Gemini 1.5 Pro or o1-mini?

Gemini 1.5 Pro and o1-mini are closely matched on the LLM Stats Score at 12.1 and 10.1. Gemini 1.5 Pro is made by Google and o1-mini is made by OpenAI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Gemini 1.5 Pro compare to o1-mini in benchmarks?

Gemini 1.5 Pro scores XSTest: 98.8%, FLEURS: 93.3%, HellaSwag: 93.3%, GSM8k: 90.8%, BIG-Bench Hard: 89.2%. o1-mini scores HumanEval: 92.4%, MATH-500: 90.0%, MMLU: 85.2%, SuperGLUE: 75.0%, GPQA: 60.0%.

Is Gemini 1.5 Pro cheaper than o1-mini?

Gemini 1.5 Pro is 1.2x cheaper for input tokens. Gemini 1.5 Pro costs $2.50/M input and $10.00/M output via google. o1-mini costs $3.00/M input and $12.00/M output via openai.

What are the context window sizes for Gemini 1.5 Pro and o1-mini?

Gemini 1.5 Pro supports 2.1M tokens and o1-mini 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 1.5 Pro and o1-mini?

Key differences include LLM Stats Score (12.1 vs 10.1), context window (2.1M vs 128K), input pricing ($2.50 vs $3.00/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Gemini 1.5 Pro and o1-mini?

Gemini 1.5 Pro is developed by Google and o1-mini is developed by OpenAI.