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DeepSeek V3 vs Mistral Medium 3.5

DeepSeek V3

DeepSeek

70#123
vs
Mistral Medium 3.5

Mistral AI

40#311
Signal-by-Signal Comparison
SignalDeepSeek V3DeltaMistral Medium 3.5
Capabilities
50
-33
83
Benchmarks
70
+70
0
Pricing
99
+7
93
Context window size
83
-3
86
Recency
9
-89
98
Output Capacity
67
-18
85
Overall Result
2 wins
of 6
4 wins
Mistral Medium 3.5 wins 4 of 6 signals

Score History

Score History (38 data points)
DeepSeek V3Mistral Medium 3.5
DeepSeek V3

69.5

current score

Leader

DeepSeek V3

right now

Mistral Medium 3.5

40

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

DeepSeek V3

DeepSeek

Best Value
Per request$0.000765
Daily$2.55
Monthly$76.50
Annual$918.00

Mistral Medium 3.5

Mistral AI

Per request$0.005250
Daily$17.50
Monthly$525.00
Annual$6300.00

DeepSeek V3 saves you $448.50/month

That's $5382.00/year compared to Mistral Medium 3.5 at your current usage level of 100K calls/month.

85% cheaper
Choose DeepSeek V3 for cost optimization

DeepSeek V3 pricing:
Input:$0.32/M tokens
Output:$0.89/M tokens
Mistral Medium 3.5 pricing:
Input:$1.50/M tokens
Output:$7.50/M tokens
Winner
DeepSeek V3

DeepSeek

70

Composite Score

Mistral Medium 3.5

Mistral AI

40

Composite Score

Signal-by-Signal Comparison
MetricDeepSeek V3Mistral Medium 3.5Winner
Overall Score
70
40
DeepSeek V3
Rank#123#311
DeepSeek V3
Quality Rank#123#311
DeepSeek V3
Adoption Rank#123#311
DeepSeek V3
Parameters------
Context Window164K262K
Mistral Medium 3.5
Pricing$0.32/$0.89/M$1.50/$7.50/M--
Signal Scores
Capabilities
50
83
Mistral Medium 3.5
Benchmarks
70
--
DeepSeek V3
Pricing
99
93
DeepSeek V3
Context window size
83
86
Mistral Medium 3.5
Recency
9
98
Mistral Medium 3.5
Output Capacity
67
85
Mistral Medium 3.5
Benchmark Head-to-Head(14 benchmarks)
DeepSeek V3: 0Mistral Medium: 0
DeepSeek V3
Mistral Medium
Normalized 0-100%
MMLU
88.5%-
MMLU-Pro
75.9%-
GPQA Diamond
59.1%-
MATH-500
90.2%-
HumanEval
82.6%-
SWE-bench Verified
42%-
AIME 2024
39.2%-
GSM8K
96.7%-
IFEval
87.1%-
BBH
87.5%-
Arena Elo
1318-
LiveBench
60.4%-
HLE
-4.52%
BigCodeBench
50%-
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

DeepSeek V3Competitive

Scores 70/100 (rank #123), placing it in the top 58% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Mistral Medium 3.5Entry Level

Scores 40/100 (rank #311), placing it in the top -7% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

DeepSeek V3 has a 30-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose DeepSeek V3 when you need:

  • High-volume production workloads where API costs must be minimized
  • Self-hosted deployments where you need full control over the model

Choose Mistral Medium 3.5 when you need:

  • Processing long documents or large codebases (262K token context)
  • Multimodal workflows that require image understanding
  • Step-by-step reasoning and chain-of-thought problem solving
Cost-Performance Analysis
DeepSeek V3Best Value
Input cost$0.32/M tokens
Output cost$0.89/M tokens
Cost per quality point$0.017
Est. monthly (1M tokens/day)$18.15
Mistral Medium 3.5
Input cost$1.50/M tokens
Output cost$7.50/M tokens
Cost per quality point$0.225
Est. monthly (1M tokens/day)$135.00

DeepSeek V3 offers 87% better value per quality point. At 1M tokens/day, you'd spend $18.15/month with DeepSeek V3 vs $135.00/month with Mistral Medium 3.5 - a $116.85 monthly difference.

Latency & Speed
DeepSeek V3Faster
Speed score0/100
Mistral Medium 3.5
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

DeepSeek V3

Customer support chatbot

Suitable for user-facing chat with competitive response times. DeepSeek V3 also offers lower per-token costs for high-volume support

DeepSeek V3

Long document analysis

Larger context window (262K tokens) can process longer documents, contracts, and research papers in a single pass

Mistral Medium 3.5

Batch data extraction

Lower output pricing ($0.89/M) reduces costs when processing thousands of records daily

DeepSeek V3

Creative writing & content

Higher overall composite score (70/100) correlates with better nuance, coherence, and style in long-form content

DeepSeek V3

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

Mistral Medium 3.5
Which Should You Choose?
Our recommendation:
DeepSeek V3

DeepSeek V3 clearly outperforms Mistral Medium 3.5 with a significant 29.5-point lead. For most general use cases, DeepSeek V3 is the stronger choice. However, Mistral Medium 3.5 may still excel in niche scenarios.

DeepSeek V3
Recommended

by DeepSeek

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Cost - 87% lower pricing; better value at scale
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by Mistral AI

Consider for specialized use cases.

Capability Comparison
CapabilityDeepSeek V3Mistral Medium 3.5
Vision (Image Input)differs
Function Calling
Streaming
JSON Mode
Reasoningdiffers
Web Search
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

DeepSeek V3

DeepSeek

Best Value
$1.64
estimated monthly cost

Mistral Medium 3.5

Mistral AI

$11.70
estimated monthly cost

DeepSeek V3 saves you $10.06/month

That's 86% cheaper than Mistral Medium 3.5 at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterDeepSeek V3Mistral Medium 3.5
Context Window164K262K
Max Output Tokens16,384209,715
Open SourceYesNo
CreatedDec 26, 2024Apr 30, 2026
Last updated: 2m ago

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DeepSeek V3 vs Mistral Medium 3.5 (2026) | LM Market Cap