Model Comparison

o1 vs Grok-4.1 Thinking

Comparing o1 and Grok-4.1 Thinking across benchmarks, pricing, and capabilities.

Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

o1 and Grok-4.1 Thinking don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Grok-4.1 Thinking costs less

For input processing, o1 ($15.00/1M tokens) is 5.0x more expensive than Grok-4.1 Thinking ($3.00/1M tokens).

For output processing, o1 ($60.00/1M tokens) is 4.0x more expensive than Grok-4.1 Thinking ($15.00/1M tokens).

In conclusion, o1 is more expensive than Grok-4.1 Thinking.*

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

Lowest available price from all providers
Mon Apr 13 2026 • llm-stats.com
OpenAI
o1
Input tokens$15.00
Output tokens$60.00
Best providerAzure
xAI
Grok-4.1 Thinking
Input tokens$3.00
Output tokens$15.00
Best providerxAI
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Grok-4.1 Thinking accepts 256,000 input tokens compared to o1's 200,000 tokens. o1 can generate longer responses up to 100,000 tokens, while Grok-4.1 Thinking is limited to 8,000 tokens.

OpenAI
o1
Input200,000 tokens
Output100,000 tokens
xAI
Grok-4.1 Thinking
Input256,000 tokens
Output8,000 tokens
Mon Apr 13 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Grok-4.1 Thinking supports multimodal inputs, whereas o1 does not.

Grok-4.1 Thinking can handle both text and other forms of data like images, making it suitable for multimodal applications.

o1

Text
Images
Audio
Video

Grok-4.1 Thinking

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.

o1

Proprietary

Closed source

Grok-4.1 Thinking

Proprietary

Closed source

Release Timeline

When each model was launched

o1 was released on 2024-12-17, while Grok-4.1 Thinking was released on 2025-11-17.

Grok-4.1 Thinking is 11 months newer than o1.

o1

Dec 17, 2024

1.3 years ago

Grok-4.1 Thinking

Nov 17, 2025

4 months ago

11mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

o1 is available from Azure, OpenAI. Grok-4.1 Thinking is available from xAI.

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

Grok-4.1 Thinking

xai logo
xAI
Input Price:Input: $3.00/1MOutput Price:Output: $15.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
xAI
Larger context window (256,000 tokens)
Supports multimodal inputs
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
o1
xAI
Grok-4.1 Thinking

FAQ

Common questions about o1 vs Grok-4.1 Thinking

o1 (OpenAI) and Grok-4.1 Thinking (xAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.
o1 scores GSM8k: 97.1%, MATH: 96.4%, GPQA Physics: 92.8%, MMLU: 91.8%, MGSM: 89.3%. Grok-4.1 Thinking scores Creative Writing v3: 86.1%, WMDP: 84.0%, EQ-Bench: 79.3%, ProtocolQA: 79.0%, LMArena Text Leaderboard: 74.2%.
Grok-4.1 Thinking is 5.0x cheaper for input tokens. o1 costs $15.00/M input and $60.00/M output via azure. Grok-4.1 Thinking costs $3.00/M input and $15.00/M output via xai.
o1 supports 200K tokens and Grok-4.1 Thinking supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include context window (200K vs 256K), input pricing ($15.00 vs $3.00/M), multimodal support (no vs yes). See the full comparison above for benchmark-by-benchmark results.
o1 is developed by OpenAI and Grok-4.1 Thinking is developed by xAI.