Model Comparison
Step 5 Preview
vs. Llama 3.1 Tulu3 405B
Comparing 2 AI models · 0 benchmarks · StepFun, Allen Institute for AI
Recommended Pick
StStep 5 Preview2 metric winsStrongest on: Reasoning, Intelligence
Lowest Price
Step 5 Preview
$1.00/1M input price
Best Reasoning
Step 5 Preview
43.7 reasoning score
Blends available reasoning benchmarks
Differences That Matter
Reasoning gap
Step 5 Preview leads Llama 3.1 Tulu3 405B by 36.5 points on reasoning.
Top-pick rationale
Step 5 Preview wins 2 measurable categories, including Reasoning, Intelligence.
Response Face-Off
Run one prompt through the selected models and compare response quality with live speed and cost context.
Step 5 Preview
StepFun
TTFT
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Time
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tok/s
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Tokens
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Cost
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Llama 3.1 Tulu3 405B
Allen Institute for AI
TTFT
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Time
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tok/s
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Tokens
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Cost
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Which answer was more useful?
Secure AI Chat made in Europe
Use Claude, ChatGPT, Gemini alongside with EU-Hosted Models like Deepseek, Qwen & Kimi.
EU-hosted inference
Servers in Germany & Finland. Designed to meet strict GDPR and ISO 27001 compliance requirements.
Full Comparison
| Metric | Top Pick St Step 5 Preview | Al Llama 3.1 Tulu3 405B |
|---|---|---|
| Pricing per 1M tokens | ||
| Input Cost | $1.00/1M | — |
| Output Cost | $2.70/1M | — |
| Blended (3:1) | $1.43/1M | — |
| Specifications | ||
| Organization | StepFun | Allen Institute for AI |
| Release Date | Sep 18, 2026 | Jan 30, 2025 |
| Performance & Speed | ||
| Throughput | 92.1 tok/s | — |
| TTFT | 3550ms | — |
| Latency | 25250ms | — |
| Composite Indices | ||
| Value Score | 100.0 | — |
| Reasoning Score | 43.7 | 7.2 |
| Intelligence | 43.7 | 7.2 |
Key Takeaways
Step 5 Preview offers the best value at $1.00/1M,making it ideal for high-volume applications and cost-conscious projects.
Step 5 Preview has the strongest reasoning profile with a 43.7 reasoning score,combining the available reasoning-heavy benchmarks.
All models support context windows of ∞+ tokens,suitable for processing lengthy documents and maintaining extended conversations.
When to Choose Each Model
Step 5 Preview
- Cost-sensitive applications
- High-volume processing
- Complex reasoning tasks
- Research & analysis
Llama 3.1 Tulu3 405B
- General-purpose AI
- Versatile applications
