DeepSeek V4-Pro (Fireworks) vs DeepSeek V4-Pro (DeepInfra)
Detailed pricing comparison and cost analysis.
Updated September 2026
Cost Simulator
| Feature | DeepSeek V4-Pro (Fireworks) | DeepSeek V4-Pro (DeepInfra) |
|---|---|---|
| Provider | Fireworks AI | DeepInfra |
| Input Price (1M) | $1.74 | $1.30 |
| Output Price (1M) | $3.48 | $2.60 |
| Context Window | 1,000,000 | 1,000,000 |
Verdict
DeepSeek V4-Pro (Fireworks) costs $1.74 per 1M input tokens and $3.48 per 1M output tokens. DeepSeek V4-Pro (DeepInfra) costs $1.30 per 1M input tokens and $2.60 per 1M output tokens. DeepSeek V4-Pro (DeepInfra) is 25% cheaper on input tokens than DeepSeek V4-Pro (Fireworks). For output tokens, DeepSeek V4-Pro (DeepInfra) is the more affordable option at $2.60/1M vs $3.48.
On context window, DeepSeek V4-Pro (Fireworks) supports 1,000,000 tokens — meaning it can fit more conversation history, documents, or code in a single request. This matters for RAG pipelines, long document analysis, and agentic workflows where context builds up over many turns.
When to choose DeepSeek V4-Pro (Fireworks)
- ✓ You are already integrated with Fireworks AI
When to choose DeepSeek V4-Pro (DeepInfra)
- ✓ You need the lowest input token cost ($ 1.30/1M)
- ✓ Your workload is output-heavy — DeepSeek V4-Pro (DeepInfra) generates text cheaper
- ✓ You are already integrated with DeepInfra
Use the calculator above to simulate your specific workload and find the exact break-even point. For most applications, the cheapest model is the one that minimises your total monthly bill given your input-to-output token ratio.
Frequently Asked Questions
Is DeepSeek V4-Pro (Fireworks) cheaper than DeepSeek V4-Pro (DeepInfra)? ▼
DeepSeek V4-Pro (DeepInfra) is cheaper on input tokens at $1.30/1M vs $1.74/1M for DeepSeek V4-Pro (Fireworks) — a 25% saving.
What is the context window of DeepSeek V4-Pro (Fireworks) vs DeepSeek V4-Pro (DeepInfra)? ▼
DeepSeek V4-Pro (Fireworks) has a 1,000,000-token context window. DeepSeek V4-Pro (DeepInfra) has a 1,000,000-token context window. DeepSeek V4-Pro (Fireworks) supports the larger context, suitable for longer documents and agentic workflows.
Which model is better: DeepSeek V4-Pro (Fireworks) or DeepSeek V4-Pro (DeepInfra)? ▼
The best choice depends on your use case. For cost efficiency on input tokens, DeepSeek V4-Pro (DeepInfra) is the cheaper option. For maximum context length, DeepSeek V4-Pro (Fireworks) supports 1,000,000 tokens. Use the comparison table above to find the right fit for your workload.