| Signal | Grok 4 Fast | Delta | MiniMax M2.5 |
|---|---|---|---|
Capabilities | 100 | +33 | |
Benchmarks | 70 | -3 | |
Pricing | 100 | +1 | |
Context window size | 100 | +16 | |
Recency | 97 | -3 | |
Output Capacity | 75 | -6 | |
| Overall Result | 3 wins | of 6 | 3 wins |
Score History
72.5
current score
Grok 4 Fast
right now
72.4
current score
xAI
MiniMax
Grok 4 Fast saves you $16.30/month
That's $195.60/year compared to MiniMax M2.5 at your current usage level of 100K calls/month.
| Metric | Grok 4 Fast | MiniMax M2.5 | Winner |
|---|---|---|---|
| Overall Score | 73 | 72 | Grok 4 Fast |
| Rank | #46 | #47 | Grok 4 Fast |
| Quality Rank | #46 | #47 | Grok 4 Fast |
| Adoption Rank | #46 | #47 | Grok 4 Fast |
| Parameters | -- | -- | -- |
| Context Window | 2000K | 197K | Grok 4 Fast |
| Pricing | $0.20/$0.50/M | $0.12/$0.99/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 67 | Grok 4 Fast |
| Benchmarks | 70 | 72 | MiniMax M2.5 |
| Pricing | 100 | 99 | Grok 4 Fast |
| Context window size | 100 | 84 | Grok 4 Fast |
| Recency | 97 | 100 | MiniMax M2.5 |
| Output Capacity | 75 | 80 | MiniMax M2.5 |
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%). Here's what the scores mean for these two models:
Scores 73/100 (rank #46), placing it in the top 84% of all 290 models tracked.
Scores 72/100 (rank #47), placing it in the top 84% 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 37% better value per quality point. At 1M tokens/day, you'd spend $10.50/month with Grok 4 Fast vs $16.62/month with MiniMax M2.5 - a $6.12 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 MiniMax M2.5 are extremely close in overall performance (only 0.09999999999999432 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
37% 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 | MiniMax M2.5 |
|---|---|---|
| Vision (Image Input)differs | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Output |
xAI
MiniMax
Grok 4 Fast saves you $0.4404/month
That's 31% cheaper than MiniMax M2.5 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 | MiniMax M2.5 |
|---|---|---|
| Context Window | 2M | 197K |
| Max Output Tokens | 30,000 | 65,536 |
| Open Source | No | Yes |
| Created | Sep 19, 2025 | Feb 12, 2026 |
Grok 4 Fast scores 73/100 (rank #46) compared to MiniMax M2.5's 72/100 (rank #47), giving it a 0-point advantage. Grok 4 Fast is the stronger overall choice, though MiniMax M2.5 may excel in specific areas like certain benchmarks.
Grok 4 Fast is ranked #46 and MiniMax M2.5 is ranked #47 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 MiniMax M2.5's $0.99/M output tokens - 2.0x more expensive. Input token pricing: Grok 4 Fast at $0.20/M vs MiniMax M2.5 at $0.12/M.
Grok 4 Fast has a larger context window of 2,000,000 tokens compared to MiniMax M2.5's 196,608 tokens. A larger context window means the model can process longer documents and conversations.