Model Comparison

Grok-3 vs o1Which is better in 2026?

Grok-3 significantly outperforms across most benchmarks. Grok-3 is 4.4x cheaper per token.

Verdict: Grok-3 vs o1 — which is better?

Grok-3 (by xAI) and o1 (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.

Grok-3 outperforms in 3 benchmarks (AIME 2024, GPQA, MMMU), while o1 is better at 0 benchmarks. Grok-3 significantly outperforms across most benchmarks.

On price, Grok-3 is roughly 4.4x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

o1 also accepts a larger context window (200,000 input tokens), making it the stronger choice for long documents and large codebases.

Choose Grok-3 if…

  • you want the strongest raw capability — it leads on 3 of 3 shared benchmarks
  • cost matters — it's about 4.4x cheaper per token
  • you want the most recent training data — it shipped Feb 2025

Choose o1 if…

  • you process long inputs — it offers a 200,000 token context window

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Grok-3 outperforms in 3 benchmarks (AIME 2024, GPQA, MMMU), while o1 is better at 0 benchmarks.

Grok-3 significantly outperforms across most benchmarks.

Fri Jul 03 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Grok-3 costs less

For input processing, Grok-3 ($3.00/1M tokens) is 5.0x cheaper than o1 ($15.00/1M tokens).

For output processing, Grok-3 ($15.00/1M tokens) is 4.0x cheaper than o1 ($60.00/1M tokens).

In conclusion, o1 is more expensive than Grok-3.*

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

Lowest available price from all providers
Fri Jul 03 2026 • llm-stats.com
xAI
Grok-3
Input tokens$3.00
Output tokens$15.00
Best providerxAI
OpenAI
o1
Input tokens$15.00
Output tokens$60.00
Best providerAzure
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

o1 accepts 200,000 input tokens compared to Grok-3's 128,000 tokens. o1 can generate longer responses up to 100,000 tokens, while Grok-3 is limited to 8,000 tokens.

xAI
Grok-3
Input128,000 tokens
Output8,000 tokens
OpenAI
o1
Input200,000 tokens
Output100,000 tokens
Fri Jul 03 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok-3 supports multimodal inputs, whereas o1 does not.

Grok-3 can handle both text and other forms of data like images, making it suitable for multimodal applications.

Grok-3

Text
Images
Audio
Video

o1

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.

Grok-3

Proprietary

Closed source

o1

Proprietary

Closed source

Release Timeline

When each model was launched

Grok-3 was released on 2025-02-17, while o1 was released on 2024-12-17.

Grok-3 is 2 months newer than o1.

Grok-3

Feb 17, 2025

1.4 years ago

2mo newer
o1

Dec 17, 2024

1.5 years ago

Knowledge Cutoff

When training data ends

Grok-3 has a documented knowledge cutoff of 2024-11-17, while o1's cutoff date is not specified.

We can confirm Grok-3's training data extends to 2024-11-17, but cannot make a direct comparison without o1's cutoff date.

Grok-3

Nov 2024

o1

—

Provider Availability

Grok-3 is available from xAI. o1 is available from Azure, OpenAI.

Grok-3

xai logo
xAI
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M

o1

azure logo
Azure
Input Price:Input: $15.00/1MOutput Price:Output: $60.00/1M
openai logo
OpenAI
Input Price:Input: $15.00/1MOutput Price:Output: $60.00/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

xAI
Supports multimodal inputs
Less expensive input tokens
Less expensive output tokens
Higher AIME 2024 score (93.3% vs 74.3%)
Higher GPQA score (84.6% vs 78.0%)
Higher MMMU score (78.0% vs 77.6%)
OpenAI
Larger context window (200,000 tokens)
xAIGrok-3
OpenAIo1
Compare in Playground

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Grok-3 and o1 side-by-side, then vote on the output you prefer.

Grok-3
✓ Preferred
o1
Open in Playground
AI Model Comparison Table
Feature
xAI
Grok-3
OpenAI
o1

FAQ

Common questions about Grok-3 vs o1.

Which is better, Grok-3 or o1?

Grok-3 significantly outperforms across most benchmarks. Grok-3 is made by xAI and o1 is made by OpenAI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Grok-3 compare to o1 in benchmarks?

Grok-3 scores AIME 2024: 93.3%, AIME 2025: 93.3%, GPQA: 84.6%, LiveCodeBench: 79.4%, MMMU: 78.0%. o1 scores GSM8k: 97.1%, MATH: 96.4%, GPQA Physics: 92.8%, MMLU: 91.8%, MGSM: 89.3%.

Is Grok-3 cheaper than o1?

Grok-3 is 5.0x cheaper for input tokens. Grok-3 costs $3.00/M input and $15.00/M output via xai. o1 costs $15.00/M input and $60.00/M output via azure.

What are the context window sizes for Grok-3 and o1?

Grok-3 supports 128K tokens and o1 supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Grok-3 and o1?

Key differences include context window (128K vs 200K), input pricing ($3.00 vs $15.00/M), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Grok-3 and o1?

Grok-3 is developed by xAI and o1 is developed by OpenAI.

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