DeepSeek V4 Pro vs Step 5 Preview
DeepSeek V4 Pro is cheaper on output tokens, while Step 5 Preview offers a larger context window. Choose DeepSeek V4 Pro or Step 5 Preview based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | DeepSeek V4 Pro | Step 5 Preview |
|---|---|---|
| Provider | CrofAI | StepFun |
| Input / 1M tokens | $0.35 | $1.00 |
| Output / 1M tokens | $0.80 | $2.70 |
| Context window | 1M | 1M |
| Parameters | 1.6T | — |
| Open weights | Yes | — |
| Released | Apr 2026 | — |
| LiveBench score | 74.4 | — |
| LMArena (Chatbot Arena) Elo score | — | 1440 |
| LMArena WebDev Elo score | — | 1567 |
| LMArena Vision Elo score | — | 1265 |
FAQ
Is DeepSeek V4 Pro or Step 5 Preview cheaper?
DeepSeek V4 Pro is cheaper on output tokens ($0.80 vs $2.70 per 1M).
Which has the larger context window, DeepSeek V4 Pro or Step 5 Preview?
Step 5 Preview has the larger context window (1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.