| Signal | Grok 4.1 Fast | Delta | o4 Mini Deep Research |
|---|---|---|---|
Capabilities | 100 | -- | |
Benchmarks | 76 | -9 | |
Pricing | 100 | +8 | |
Context window size | 100 | +16 | |
Recency | 100 | +6 | |
Output Capacity | 75 | -9 | |
| Overall Result | 3 wins | of 6 | 2 wins |
Score History
78
current score
o4 Mini Deep Research
right now
81.4
current score
xAI
OpenAI
Grok 4.1 Fast saves you $555.00/month
That's $6660.00/year compared to o4 Mini Deep Research at your current usage level of 100K calls/month.
| Metric | Grok 4.1 Fast | o4 Mini Deep Research | Winner |
|---|---|---|---|
| Overall Score | 78 | 81 | o4 Mini Deep Research |
| Rank | #52 | #32 | o4 Mini Deep Research |
| Quality Rank | #52 | #32 | o4 Mini Deep Research |
| Adoption Rank | #52 | #32 | o4 Mini Deep Research |
| Parameters | -- | -- | -- |
| Context Window | 2000K | 200K | Grok 4.1 Fast |
| Pricing | $0.20/$0.50/M | $2.00/$8.00/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 100 | Grok 4.1 Fast |
| Benchmarks | 76 | 85 | o4 Mini Deep Research |
| Pricing | 100 | 92 | Grok 4.1 Fast |
| Context window size | 100 | 84 | Grok 4.1 Fast |
| Recency | 100 | 94 | Grok 4.1 Fast |
| Output Capacity | 75 | 83 | o4 Mini Deep Research |
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 78/100 (rank #52), placing it in the top 82% of all 290 models tracked.
Scores 81/100 (rank #32), placing it in the top 89% of all 290 models tracked.
With only a 3-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 4.1 Fast offers 93% better value per quality point. At 1M tokens/day, you'd spend $10.50/month with Grok 4.1 Fast vs $150.00/month with o4 Mini Deep Research - a $139.50 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
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Grok 4.1 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 (81/100) 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
o4 Mini Deep Research has a moderate advantage with a 3.4000000000000057-point lead in composite score. It wins on more signal dimensions, but Grok 4.1 Fast has specific strengths that could make it the better choice for certain workflows.
Best for Quality
Grok 4.1 Fast
Marginally better benchmark scores; both are excellent
Best for Cost
Grok 4.1 Fast
93% lower pricing; better value at scale
Best for Reliability
Grok 4.1 Fast
Higher uptime and faster response speeds
Best for Prototyping
Grok 4.1 Fast
Stronger community support and better developer experience
Best for Production
Grok 4.1 Fast
Wider enterprise adoption and proven at scale
by xAI
| Capability | Grok 4.1 Fast | o4 Mini Deep Research |
|---|---|---|
| Vision (Image Input) | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
xAI
OpenAI
Grok 4.1 Fast saves you $12.24/month
That's 93% cheaper than o4 Mini Deep Research 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 4.1 Fast | o4 Mini Deep Research |
|---|---|---|
| Context Window | 2M | 200K |
| Max Output Tokens | 30,000 | 100,000 |
| Open Source | No | No |
| Created | Nov 19, 2025 | Oct 10, 2025 |