SmophyAI

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Real data comparison

DeepSeek: DeepSeek V4 Flash 0423 vs StepFun: Step 3.7 Flash

On quality, DeepSeek: DeepSeek V4 Flash 0423 leads (51.8 vs 30.9). On price, DeepSeek: DeepSeek V4 Flash 0423 is cheaper ($0.11 vs $0.44 per 1M). In real production usage, DeepSeek: DeepSeek V4 Flash 0423 is used more (rank #1 vs #11 of 291). Across 6 real task categories where both models have classified traffic, DeepSeek: DeepSeek V4 Flash 0423 handles more of the traffic in 6 of them.

  • DeepSeek: DeepSeek V4 Flash 0423
  • StepFun: Step 3.7 Flash
Quality (Intelligence Index)51.8 / 30.9
Price ($/1M blended)$0.11 / $0.44
Average usage share12.91% / 2.36%
Best provider uptime100.0% / 99.4%
Coding index69.1 / 39.6
Agentic index48.4 / 21.7
Context window1,048,576 / 262,144
Quality per dollar460.4 pts/$ / 70.6 pts/$

Head-to-head by real task

DeepSeek: DeepSeek V4 Flash 0423 leads 6 of 6 shared task categories by real classified traffic share; StepFun: Step 3.7 Flash leads 0. Not a benchmark score - this is what developers actually route to each model for, per OpenRouter's task classification.

TaskDeepSeek: DeepSeek V4 Flash 0423StepFun: Step 3.7 Flash
DevOps & Config23.0%2.8%
DevOps23.0%4.4%
File I/O20.1%2.9%
SQL & Database19.8%2.6%
Frontend & UI17.2%2.6%
Shell Execution14.5%3.1%

Usage share over time

23.98%17.99%11.99%6.00%0.00%Share of usageJul 5Jul 22Aug 8
  • DeepSeek: DeepSeek V4 Flash 0423
  • StepFun: Step 3.7 Flash

Frequently asked questions

DeepSeek: DeepSeek V4 Flash 0423 vs StepFun: Step 3.7 Flash: which is better quality?

DeepSeek: DeepSeek V4 Flash 0423 scores higher on Artificial Analysis's Intelligence Index (51.8 vs 30.9).

DeepSeek: DeepSeek V4 Flash 0423 vs StepFun: Step 3.7 Flash: which is cheaper?

DeepSeek: DeepSeek V4 Flash 0423 is cheaper at $0.11/1M vs $0.44/1M.

DeepSeek: DeepSeek V4 Flash 0423 vs StepFun: Step 3.7 Flash: which is used more?

DeepSeek: DeepSeek V4 Flash 0423 has higher real OpenRouter usage share (rank #1 vs #11 of 291).

DeepSeek: DeepSeek V4 Flash 0423 vs StepFun: Step 3.7 Flash: which wins more real-world task categories?

DeepSeek: DeepSeek V4 Flash 0423 handles more traffic in 6 of 6 shared task categories where both models have classified OpenRouter usage.

Source: OpenRouter (openrouter.ai/rankings), as of August 9, 2026.

Benchmark scores: Artificial Analysis (artificialanalysis.ai) via OpenRouter (openrouter.ai/rankings).

Methodology: smophy.ai/benchmark/methodology

Token counts originate from each provider's own tokenizer and are not directly comparable across providers.