Model Comparison
Doubao Seed Code
vs. Step 3.7 Flash
Comparing 2 AI models · 10 benchmarks · ByteDance Seed, StepFun
Recommended Pick
St Step 3.7 Flash 8 metric wins Strongest on: Throughput, Intelligence, Coding
Lowest Price
Doubao Seed Code
$0.00/1M input price
Best Reasoning
Doubao Seed Code
56.4 reasoning score
Blends available reasoning benchmarks
Best for Coding
Step 3.7 Flash
37.1 coding index
Composite Indices
Higher is better; speed and price are normalized
Standard Benchmarks
Only benchmarks with data are shown
Differences That Matter
Price gap
Doubao Seed Code is ∞x cheaper on input tokens than Step 3.7 Flash.
Reasoning gap
Doubao Seed Code leads Step 3.7 Flash by 8.6 points on reasoning.
Coding gap
Step 3.7 Flash leads Doubao Seed Code by 5.8 points on coding.
Top-pick rationale
Step 3.7 Flash wins 8 measurable categories, including Throughput, Intelligence, Coding, GPQA.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Doubao Seed Code
ByteDance Seed
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Step 3.7 Flash
StepFun
TTFT
—
Time
—
tok/s
—
Tokens
—
Cost
—
Which answer was more useful?
Full Comparison
| Metric | By Doubao Seed Code | Top Pick St Step 3.7 Flash |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $0.00/1M | $0.20/1M |
| Output Cost | $0.00/1M | $1.15/1M |
| Blended (3:1) | — | $0.44/1M |
| Specifications | ||
| Organization | ByteDance Seed | StepFun |
| Release Date | Nov 11, 2025 | May 29, 2026 |
| Performance & Speed | ||
| Throughput | — | 175.1 tok/s |
| TTFT | — | 967ms |
| Latency | — | 12388ms |
| Composite Indices | ||
| Value Score | — | 100.0 |
| Reasoning Score | 56.4 | 47.8 |
| Intelligence | 33.5 | 42.6 |
| Coding | 31.3 | 37.1 |
| Math | 79.3 | — |
| Standard Benchmarks | ||
| GPQA | 76.4% | 80.9% |
| MMLU Pro | 85.4% | — |
| HLE | 13.3% | 19.9% |
| LiveCodeBench | 76.6% | — |
| AIME 2025 | 79.3% | — |
| SciCode | 40.7% | 40.0% |
| LCR | 65.3% | 63.7% |
| IFBench | 51.4% | 67.3% |
| TAU-bench v2 | 58.2% | 98.5% |
| TerminalBench Hard | 26.5% | 35.6% |
Key Takeaways
Doubao Seed Code offers the best value at $0.00/1M, making it ideal for high-volume applications and cost-conscious projects.
Doubao Seed Code has the strongest reasoning profile with a 56.4 reasoning score, combining the available reasoning-heavy benchmarks.
Step 3.7 Flash reaches a 37.1 coding index, making it the top choice for software development and code generation tasks.
All models support context windows of ∞+ tokens, suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Doubao Seed Code
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
Step 3.7 Flash
- Code generation
- Software development
Recommended Comparisons
Popular alternatives 
