| Signal | Grok 4 Fast | Delta | o1-pro |
|---|---|---|---|
Capabilities | 100 | +33 | |
Benchmarks | 70 | -7 | |
Pricing | 100 | +95 | |
Context window size | 100 | +16 | |
Recency | 97 | +33 | |
Output Capacity | 75 | -9 | |
| Overall Result | 4 wins | of 6 | 2 wins |
Score History
72.5
current score
o1-pro
right now
72.7
current score
xAI
OpenAI
Grok 4 Fast saves you $44955.00/month
That's $539460.00/year compared to o1-pro at your current usage level of 100K calls/month.
| Metric | Grok 4 Fast | o1-pro | Winner |
|---|---|---|---|
| Overall Score | 73 | 73 | o1-pro |
| Rank | #44 | #42 | o1-pro |
| Quality Rank | #44 | #42 | o1-pro |
| Adoption Rank | #44 | #42 | o1-pro |
| Parameters | -- | -- | -- |
| Context Window | 2000K | 200K | Grok 4 Fast |
| Pricing | $0.20/$0.50/M | $150.00/$600.00/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 67 | Grok 4 Fast |
| Benchmarks | 70 | 77 | o1-pro |
| Pricing | 100 | 5 | Grok 4 Fast |
| Context window size | 100 | 84 | Grok 4 Fast |
| Recency | 97 | 64 | Grok 4 Fast |
| Output Capacity | 75 | 83 | o1-pro |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 73/100 (rank #44), placing it in the top 85% of all 290 models tracked.
Scores 73/100 (rank #42), placing it in the top 86% of all 290 models tracked.
With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
Grok 4 Fast offers 100% better value per quality point. At 1M tokens/day, you'd spend $10.50/month with Grok 4 Fast vs $11250.00/month with o1-pro - a $11239.50 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Higher benchmark score (0/100) indicates stronger performance on coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Faster response time (speed score 0/100) is critical for user-facing chat. Grok 4 Fast also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (2000K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.50/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (73/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
Grok 4 Fast and o1-pro are extremely close in overall performance (only 0.20000000000000284 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
Best for Quality
Grok 4 Fast
Marginally better benchmark scores; both are excellent
Best for Cost
Grok 4 Fast
100% lower pricing; better value at scale
Best for Reliability
Grok 4 Fast
Higher uptime and faster response speeds
Best for Prototyping
Grok 4 Fast
Stronger community support and better developer experience
Best for Production
Grok 4 Fast
Wider enterprise adoption and proven at scale
by xAI
| Capability | Grok 4 Fast | o1-pro |
|---|---|---|
| Vision (Image Input) | ||
| Function Callingdiffers | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Output |
xAI
OpenAI
Grok 4 Fast saves you $989.04/month
That's 100% cheaper than o1-pro at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Grok 4 Fast | o1-pro |
|---|---|---|
| Context Window | 2M | 200K |
| Max Output Tokens | 30,000 | 100,000 |
| Open Source | No | No |
| Created | Sep 19, 2025 | Mar 19, 2025 |
o1-pro scores 73/100 (rank #42) compared to Grok 4 Fast's 73/100 (rank #44), giving it a 0-point advantage. o1-pro is the stronger overall choice, though Grok 4 Fast may excel in specific areas like cost efficiency.
Grok 4 Fast is ranked #44 and o1-pro is ranked #42 out of 290+ AI models. Rankings use a composite score combining benchmark performance (90%) from MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations, with capabilities and context window as tiebreakers (10%). Scores update hourly.
Grok 4 Fast is cheaper at $0.50/M output tokens vs o1-pro's $600.00/M output tokens - 1200.0x more expensive. Input token pricing: Grok 4 Fast at $0.20/M vs o1-pro at $150.00/M.
Grok 4 Fast has a larger context window of 2,000,000 tokens compared to o1-pro's 200,000 tokens. A larger context window means the model can process longer documents and conversations.