| Signal | Grok 4 Fast | Delta | MiMo-V2-Flash |
|---|---|---|---|
Capabilities | 100 | +33 | |
Benchmarks | 70 | +70 | |
Pricing | 1 | +0 | |
Context window size | 100 | +14 | |
Recency | 97 | -3 | |
Output Capacity | 75 | -6 | |
| Overall Result | 4 wins | of 6 | 2 wins |
30
days higher
0
days
0
days higher
xAI
Xiaomi
MiMo-V2-Flash saves you $21.50/month
That's $258.00/year compared to Grok 4 Fast at your current usage level of 100K calls/month.
| Metric | Grok 4 Fast | MiMo-V2-Flash | Winner |
|---|---|---|---|
| Overall Score | 73 | 40 | Grok 4 Fast |
| Rank | #54 | #159 | Grok 4 Fast |
| Quality Rank | #54 | #159 | Grok 4 Fast |
| Adoption Rank | #54 | #159 | Grok 4 Fast |
| Parameters | -- | -- | -- |
| Context Window | 2000K | 262K | Grok 4 Fast |
| Pricing | $0.20/$0.50/M | $0.09/$0.29/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 67 | Grok 4 Fast |
| Benchmarks | 70 | -- | Grok 4 Fast |
| Pricing | 1 | 0 | Grok 4 Fast |
| Context window size | 100 | 86 | Grok 4 Fast |
| Recency | 97 | 100 | MiMo-V2-Flash |
| Output Capacity | 75 | 80 | MiMo-V2-Flash |
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 #54), placing it in the top 82% of all 290 models tracked.
Scores 40/100 (rank #159), placing it in the top 46% of all 290 models tracked.
Grok 4 Fast has a 33-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.
MiMo-V2-Flash offers 46% better value per quality point. At 1M tokens/day, you'd spend $5.70/month with MiMo-V2-Flash vs $10.50/month with Grok 4 Fast - a $4.80 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. MiMo-V2-Flash 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 ($0.29/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 clearly outperforms MiMo-V2-Flash with a significant 32.5-point lead. For most general use cases, Grok 4 Fast is the stronger choice. However, MiMo-V2-Flash may still excel in niche scenarios.
Best for Quality
Grok 4 Fast
Marginally better benchmark scores; both are excellent
Best for Cost
MiMo-V2-Flash
46% 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 | MiMo-V2-Flash |
|---|---|---|
| Vision (Image Input)differs | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Output |
xAI
Xiaomi
MiMo-V2-Flash saves you $0.4500/month
That's 47% cheaper than Grok 4 Fast 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 | MiMo-V2-Flash |
|---|---|---|
| Context Window | 2M | 262K |
| Max Output Tokens | 30,000 | 65,536 |
| Open Source | No | Yes |
| Created | Sep 19, 2025 | Dec 14, 2025 |
Grok 4 Fast scores 73/100 (rank #54) compared to MiMo-V2-Flash's 40/100 (rank #159), giving it a 33-point advantage. Grok 4 Fast is the stronger overall choice, though MiMo-V2-Flash may excel in specific areas like cost efficiency.
Grok 4 Fast is ranked #54 and MiMo-V2-Flash is ranked #159 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.
MiMo-V2-Flash is cheaper at $0.29/M output tokens vs Grok 4 Fast's $0.50/M output tokens - 1.7x more expensive. Input token pricing: Grok 4 Fast at $0.20/M vs MiMo-V2-Flash at $0.09/M.
Grok 4 Fast has a larger context window of 2,000,000 tokens compared to MiMo-V2-Flash's 262,144 tokens. A larger context window means the model can process longer documents and conversations.