DeepSeek V4 Flash vs Mistral Small 4
Two of the cheapest AI models go head-to-head. Mistral is 29% cheaper on input, DeepSeek is 7% cheaper on output — with 7.8x more context. See which fits your workload.
Pricing data verified: 2026-06-20
| Specification | DeepSeek V4 Flash (DeepSeek) | Mistral Small 4 (Mistral) |
|---|---|---|
| Input Price (per 1M tokens) | $0.14 | $0.10 |
| Output Price (per 1M tokens) | $0.28 | $0.30 |
| Context Window | 1M | 128K |
| Tier | Budget | Budget |
| Provider | DeepSeek | Mistral |
Calculate Your Exact Costs
See how the costs stack up for your specific usage pattern.
Other Models to Consider
Which Model for Which Use Case?
High-Volume Input Processing
Mistral Small 4's 29% cheaper input makes it ideal for classification, tagging, and extraction tasks processing millions of short inputs daily.
Long Document Analysis
DeepSeek V4 Flash's 1M context window (7.8x larger than Mistral's 128K) handles lengthy documents, legal contracts, and research papers in a single pass.
Content Generation
DeepSeek V4 Flash's 7% cheaper output pricing adds up for content generation tasks where output volume is high. Better for blog posts, summaries, and creative writing.
European Compliance
Mistral Small 4, based in France, offers stronger GDPR compliance guarantees and European data sovereignty. Critical for EU-based enterprises.
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Frequently Asked Questions
Which is cheaper, DeepSeek V4 Flash or Mistral Small 4?
It depends on your usage pattern. Mistral Small 4 is 29% cheaper on input ($0.10/M vs $0.14/M), while DeepSeek V4 Flash is 7% cheaper on output ($0.28/M vs $0.30/M). For input-heavy workloads, Mistral wins; for output-heavy, DeepSeek wins.
When should I choose DeepSeek V4 Flash?
Choose DeepSeek V4 Flash for long context needs (1M vs 128K), output-heavy workloads where its 7% cheaper output adds up, and Chinese language support where DeepSeek excels.
When should I choose Mistral Small 4?
Choose Mistral Small 4 for input-heavy workloads where its 29% cheaper input matters, European data sovereignty needs (GDPR compliance), and simple tasks where the lower input cost dominates.
Do they both support function calling?
Yes, both DeepSeek V4 Flash and Mistral Small 4 support function calling and tool use, making them suitable for agentic workflows and structured output generation.