AI Model Comparison

Step 3.7 Flash vs MiMo-V2-Pro

Compare Step 3.7 Flash vs MiMo-V2-Pro with benchmark results, speed, pricing, and practical workflow guidance.

Best For Step 3.7 Flash

  • High-speed real-time applications
  • Cost-sensitive production environments
  • High-volume data processing tasks

Best For MiMo-V2-Pro

  • Complex coding and logic tasks
  • Applications requiring high reasoning
  • Tasks where accuracy outweighs speed

Step 3.7 Flash offers superior speed and cost-efficiency, while MiMo-V2-Pro provides higher intelligence and coding capabilities. Choosing between them depends on whether your priority is high-volume, low-latency deployment or maximum reasoning performance for complex tasks.

Quick Take

Step 3.7 Flash (StepFun) and MiMo-V2-Pro (Xiaomi) represent two distinct approaches to AI deployment. Released on May 29, 2026, Step 3.7 Flash focuses on high-speed, cost-effective performance. MiMo-V2-Pro, released earlier on March 18, 2026, positions itself as a more powerful, albeit slower and more expensive, alternative.

Benchmark Read

MiMo-V2-Pro consistently outperforms Step 3.7 Flash across most core metrics. It holds an Intelligence index of 49.2 compared to 42.6, and a Coding index of 41.4 versus 37.1. In specific benchmarks, MiMo-V2-Pro leads in GPQA (0.87 vs 0.809), HLE (0.283 vs 0.199), SciCode (0.425 vs 0.4), and TerminalBench Hard (0.409 vs 0.356). Step 3.7 Flash shows competitive results in IFBench (0.673 vs 0.688) and leads in LCR (0.637 vs 0.607) and TAU2 (0.985 vs 0.950).

Cost and Speed

There is a significant disparity in operational efficiency. Step 3.7 Flash is highly optimized for speed, delivering 408.113 tokens per second with a time-to-first-token of 0.786s. Its blended pricing is $0.44/1M tokens. Conversely, MiMo-V2-Pro operates at 53.402 tokens per second with a 2.165s time-to-first-token, and its blended pricing is $1.50/1M tokens. Step 3.7 Flash is roughly 3.4 times cheaper and significantly faster than the MiMo-V2-Pro model.

Best Fit

Step 3.7 Flash is best suited for high-throughput applications, real-time chatbots, and projects where budget optimization is critical. MiMo-V2-Pro is better suited for complex coding tasks, advanced reasoning, and scenarios where the highest possible intelligence index is required, provided the latency and cost are acceptable for the use case.

Benchmark table

Side-by-side scores, speed, and pricing for the selected models.

Metric StepFun Step 3.7 Flash Xiaomi MiMo-V2-Pro
Index Scores
Intelligence Index 42.6 49.2
Coding Index 37.1 41.4
Math Index--
Benchmark Scores
GPQA 80.9 87.0
SciCode 40.0 42.5
IFBench 67.3 68.8
HLE 19.9 28.3
LCR 63.7 60.7
TAU2 98.5 95.0
TerminalBench Hard 35.6 40.9

Verdict

If your application requires rapid, cost-effective responses, Step 3.7 Flash is the clear winner due to its high output speed and lower pricing. However, for developers prioritizing raw intelligence and coding accuracy, MiMo-V2-Pro is the better investment, despite the higher cost and slower latency. Evaluate your project's specific balance of budget constraints versus performance requirements to make the final selection.

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