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DeepSeek V4 Pro vs Mistral Small 4

DeepSeek V4 Pro vs Mistral Small 4: Mistral Small 4 is cheaper for input-heavy usage ($0.15/M vs $0.435/M input tokens), while DeepSeek V4 Pro is better for long-context tasks (1,000,000 tokens).

Direct answer: choose Mistral Small 4 for lower token spend and choose DeepSeek V4 Pro when your workload needs longer context.

Common pricing searches covered on this page: DeepSeek V4 Pro vs Mistral Small 4 • DeepSeek V4 Pro vs Mistral Small 4 pricing • DeepSeek V4 Pro vs Mistral Small 4 API pricing and v4 pro vs small 4 pricing.

DeepSeek
DeepSeek V4 Pro
vs
Mistral AI
Mistral Small 4

Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

DeepSeek V4 Pro

Per Request:$0.000870
Daily:$0.087
Monthly:$2.61
Yearly:$31.755

Mistral Small 4

Per Request:$0.000450
Daily:$0.045
Monthly:$1.35
Yearly:$16.425

Cost Differences

$0.000420
Per Request
$0.042
Daily
$1.26
Monthly
$15.33
Yearly

Mistral Small 4 costs less than DeepSeek V4 Pro

Quick Recommendation

Winner for direct API pricing: Mistral Small 4. At the default workload, Mistral Small 4 saves about $1.26/month ($15.33/year) versus DeepSeek V4 Pro.

Feature Comparison

FeatureDeepSeek V4 ProMistral Small 4
ProviderDeepSeekMistral AI
Input Price$0.435/1M tokens$0.15/1M tokens
Output Price$0.87/1M tokens$0.60/1M tokens
Context Window1,000,000 tokens128,000 tokens
Max Output384,000 tokens16,384 tokens
Categoryflagshipefficient
Capabilities
textcodereasoning
textvisioncodereasoning
Release Date4/24/20263/18/2026

DeepSeek V4 Pro vs Mistral Small 4: Which Should You Choose?

Choosing between DeepSeek V4 Pro and Mistral Small 4 depends on your priorities: cost efficiency, context length, or raw capability. Mistral Small 4 is the more affordable option at $0.15/1M input tokens66% cheaper than DeepSeek V4 Pro. Meanwhile, DeepSeek V4 Pro offers a significantly larger context window at 1,000,000 tokens vs 128,000 for Mistral Small 4.

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.

These models target different tiers: DeepSeek V4 Pro is a flagship model while Mistral Small 4 is efficient. This means they're optimized for different workloads. DeepSeek V4 Pro is built for complex tasks that require deeper reasoning, while Mistral Small 4 offers better value for routine operations.

Output costs matter too. DeepSeek V4 Pro charges $0.87/1M output tokens vs $0.60 for Mistral Small 4. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Mistral Small 4 has the edge here at $0.60/1M output tokens.

Multimodal capabilities: Mistral Small 4 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:

  • • 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 Small 4 when:

  • • Budget is a primary concern
  • • You need more capabilities (vision)
  • • You're already using Mistral AI's API ecosystem
  • • You're running high-volume, latency-sensitive workloads

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

  • Higher input cost than Mistral Small 4
  • Higher output cost than Mistral Small 4

Mistral Small 4

  • Input pricing: $0.15/M tokens
  • Output pricing: $0.60/M tokens
  • Context window: 128,000 tokens
  • Max output: 16,384 tokens

Watch out for

  • 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 Small 4 (Mistral AI)

Start using DeepSeek V4 Pro today

Sign Up for DeepSeek

Start using Mistral Small 4 today

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Frequently Asked Questions

Which is cheaper, DeepSeek V4 Pro or Mistral Small 4?
Mistral Small 4 is cheaper for input tokens at $0.15 per million tokens vs $0.435 for DeepSeek V4 Pro — that's 66% savings on input costs.
What is the context window difference between DeepSeek V4 Pro and Mistral Small 4?
DeepSeek V4 Pro supports 1,000,000 tokens while Mistral Small 4 supports 128,000 tokens — a difference of 872,000 tokens in favor of DeepSeek V4 Pro.
Which model is better for AI Agent / Agentic Workflows?
Both models support text, code, reasoning. For ai agent / agentic workflows, Mistral Small 4 is the lower-cost option, while DeepSeek V4 Pro offers a larger context window (1,000,000 vs 128,000 tokens). Choose Mistral Small 4 for budget sensitivity or DeepSeek V4 Pro for longer context tasks.
Which model has better overall pricing for heavy usage?
At 100 requests/day with 1,000 input and 500 output tokens each, DeepSeek V4 Pro costs about $2.61/month and Mistral Small 4 costs about $1.35/month. Overall, Mistral Small 4 has lower combined input + output rates ($0.15 in, $0.60 out) vs DeepSeek V4 Pro.
Where can I compare DeepSeek and Mistral AI API pricing beyond this model matchup?
See the DeepSeek vs Mistral AI provider comparison page for lineup-level averages, then review each model page for exact per-token rates.

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