DeepSeek V4 Pro vs Mistral Medium 3.5
DeepSeek V4 Pro vs Mistral Medium 3.5: DeepSeek V4 Pro is cheaper for input-heavy usage ($0.435/M vs $1.50/M input tokens), while DeepSeek V4 Pro is better for long-context tasks (1,000,000 tokens).
Direct answer: choose DeepSeek V4 Pro for lower token spend and choose DeepSeek V4 Pro when your workload needs longer context.
Compare input and output token pricing, context windows, and monthly cost estimates on one page so you can pick the cheaper model fast.
Cost Comparison (1000 input + 500 output tokens, 100 requests/day)
DeepSeek V4 Pro
Mistral Medium 3.5
Cost Differences
Mistral Medium 3.5 costs more than DeepSeek V4 Pro
Quick Recommendation
Winner for direct API pricing: DeepSeek V4 Pro. At the default workload, DeepSeek V4 Pro saves about $13.14/month ($159.87/year) versus Mistral Medium 3.5.
Feature Comparison
| Feature | DeepSeek V4 Pro | Mistral Medium 3.5 |
|---|---|---|
| Provider | DeepSeek | Mistral AI |
| Input Price | $0.435/1M tokens | $1.50/1M tokens |
| Output Price | $0.87/1M tokens | $7.50/1M tokens |
| Context Window | 1,000,000 tokens | 256,000 tokens |
| Max Output | 384,000 tokens | 32,768 tokens |
| Category | flagship | flagship |
| Capabilities | textcodereasoning | textvisioncodereasoning |
| Release Date | 4/24/2026 | 4/29/2026 |
DeepSeek V4 Pro vs Mistral Medium 3.5: Which Should You Choose?
Choosing between DeepSeek V4 Pro and Mistral Medium 3.5 depends on your priorities: cost efficiency, context length, or raw capability. DeepSeek V4 Pro is the more affordable option at $0.435/1M input tokens — 71% cheaper than Mistral Medium 3.5. Meanwhile, DeepSeek V4 Pro offers a significantly larger context window at 1,000,000 tokens vs 256,000 for Mistral Medium 3.5.
These models come from different providers — DeepSeek and Mistral AI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with DeepSeek, switching to Mistral AIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.
Both models are in the flagship category, making this a direct head-to-head comparison. At scale — say 10,000 requests per day — the cost difference adds up: DeepSeek V4 Pro would save you roughly $1,314.00/month compared to Mistral Medium 3.5. For startups and indie developers, that difference can be significant.
Output costs matter too. DeepSeek V4 Pro charges $0.87/1M output tokens vs $7.50 for Mistral Medium 3.5. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. DeepSeek V4 Pro has the edge here at $0.87/1M output tokens.
Multimodal capabilities: Mistral Medium 3.5 supports vision (image inputs) while DeepSeek V4 Pro is text-only. If your application needs image understanding, this narrows your choice.
Best Use Cases
Choose DeepSeek V4 Pro when:
- • Budget is a primary concern
- • You need a larger context window (1,000,000 tokens)
- • You need longer outputs (up to 384,000 tokens)
- • You're already using DeepSeek's API ecosystem
Choose Mistral Medium 3.5 when:
- • You need more capabilities (vision)
- • You're already using Mistral AI's API ecosystem
Pros and Caveats at a Glance
DeepSeek V4 Pro
- • Input pricing: $0.435/M tokens
- • Output pricing: $0.87/M tokens
- • Context window: 1,000,000 tokens
- • Max output: 384,000 tokens
Watch out for
- • Trade-offs are minor in this matchup.
Mistral Medium 3.5
- • Input pricing: $1.50/M tokens
- • Output pricing: $7.50/M tokens
- • Context window: 256,000 tokens
- • Max output: 32,768 tokens
Watch out for
- • Higher input cost than DeepSeek V4 Pro
- • Higher output cost than DeepSeek V4 Pro
- • Smaller context window than DeepSeek V4 Pro
Try Different Scenarios
Use the calculator below to see how costs change with different usage patterns
DeepSeek V4 Pro (DeepSeek)
Mistral Medium 3.5 (Mistral AI)
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Which is cheaper, DeepSeek V4 Pro or Mistral Medium 3.5?▼
What is the context window difference between DeepSeek V4 Pro and Mistral Medium 3.5?▼
Which model is better for AI Agent / Agentic Workflows?▼
Which model has better overall pricing for heavy usage?▼
Where can I compare DeepSeek and Mistral AI API pricing beyond this model matchup?▼
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