API cost decision in 10 seconds

Mistral Medium 3.5 vs 🔥DeepSeek V4 Pro

Pick DeepSeek V4 Pro when budget and context both matter.

Pricing data updated:  Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick DeepSeek V4 Pro when budget and context both matter.

On the standard 1M input plus 500K output workload, DeepSeek V4 Pro is estimated at $0.87 vs $5.25 for Mistral Medium 3.5, saving $4.38 (83.4% lower).

Cost-first pickDeepSeek V4 Pro
Context-first pickDeepSeek V4 Pro
Sample savings$4.3883.4%
10x traffic gap$43.8

DeepSeek V4 Pro is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $43.8. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

DeepSeek V4 Pro stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickMistral Medium 3.5DeepSeek V4 Pro
Input-heavy / RAG 5M input + 500K output DeepSeek V4 Pro $11.25 $2.61
Balanced workload 1M input + 1M output DeepSeek V4 Pro $9 $1.3
Output-heavy chatbot 1M input + 5M output DeepSeek V4 Pro $39 $4.78
Cheaper inputDeepSeek V4 Pro$1.5 vs $0.43 / 1M
Cheaper outputDeepSeek V4 Pro$7.5 vs $0.87 / 1M
Larger contextDeepSeek V4 Pro262.14K vs 1.05M
Sample workloadDeepSeek V4 Pro$5.25 vs $0.87

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
Mistral Medium 3.5Calculating…Estimated API cost
DeepSeek V4 ProCalculating…Estimated API cost
Cheaper for this workloadCalculating…Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

DeepSeek V4 Pro has the lower input price, DeepSeek V4 Pro has the lower output price, and DeepSeek V4 Pro offers the larger context window.

For a 1M input token plus 500K output token workload, the estimated API cost is $5.25 for Mistral Medium 3.5 and $0.87 for DeepSeek V4 Pro.

Best Fit

Choose Mistral Medium 3.5 when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Choose DeepSeek V4 Pro when you care most about lower input-token price, lower output-token price, and larger context window.

Head-to-Head Specs
FeatureMistral Medium 3.5
(Mistral)		🔥DeepSeek V4 Pro
(DeepSeek)
Input Price
prompt tokens per 1M		$1.5$0.43
Completion Price
per 1M tokens		$7.5$0.87
Sample Workload Cost
1M input + 500K output		$5.25$0.87
Context Window262.14K1.05M
Release Date2026-04-302026-04-24
Popularity#6
Mistral Medium 3.5

Mistral Medium 3.5 is a dense 128B instruction-following model from Mistral AI. It supports text and image inputs with text output, and is designed for agentic workflows, coding, and complex...

DeepSeek V4 Pro

DeepSeek V4 Pro is a large-scale Mixture-of-Experts model from DeepSeek with 1.6T total parameters and 49B activated parameters, supporting a 1M-token context window. It is designed for advanced reasoning, coding,...

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionDeepSeek V4 ProOn the standard 1M input plus 500K output workload, DeepSeek V4 Pro is estimated at $0.87 vs $5.25 for Mistral Medium 3.5, saving $4.38 (83.4% lower).
High-volume input processingDeepSeek V4 ProLower prompt-token price matters most when prompts or retrieved passages dominate the bill.
Long responses and chatbotsDeepSeek V4 ProLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workDeepSeek V4 ProA larger context window leaves more room for retrieved passages and source files.