Agentic
Not comparable- DeepSeek V3.1
- Not measured
- Mistral Medium 3
- Not measured
- Weighted basis
- 0 vs 0 rows
- Reading
- Not comparable
Model comparison
DeepSeek V3.1 vs Mistral Medium 3
Updated July 31, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.
The public evidence has no benchmark result shared by both models, so it does not support a quality verdict. Use the documented cost, context, and runtime rows instead.
0 results are shared. Category rows based on different benchmark sets are marked directional and do not name a winner.
Which one for your work
Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.
No workload recommendation clears the current evidence threshold.
Use the matched evidence, workload costs, and sourced specifications below instead of treating a point score as a universal answer.
Show secondary and unsupported calls
Coding work
Code generation, repair, and software-engineering tasks
Not enough matched evidence
No shared weighted benchmark basis supports a winner.
Confidence: limited
Agentic work
Tool use, computer use, and multi-step task completion
Not enough matched evidence
No shared weighted benchmark basis supports a winner.
Confidence: limited
Long documents
Prompts that approach the documented context limit
No clear pick
The documented context windows are equal.
Confidence: documented
Chat turn cost
1K fresh input + 500 output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
Confidence: listed-rates
Cache-heavy agent loop cost
200K cached + 20K fresh input + 10K output tokens
Not enough matched evidence
The page does not recommend a cost winner because at least one model cannot fit the stated workload in one request. DeepSeek V3.1 does not fit this workload in one request. Mistral Medium 3 does not fit this workload in one request. Mistral Medium 3 has no published cached-input rate, so cached tokens use its listed input rate. DeepSeek V3.1 has no comparable published API token rate.
Confidence: rate-fallback
Repository review cost
50K fresh input + 3K output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
Confidence: listed-rates
What is actually comparable
Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.
Evidence parity totals are not available.
- Shared results
- 0
- DeepSeek V3.1 only
- 0
- Mistral Medium 3 only
- 0
- Like-for-like categories
- 0 / 8
Category results, on a stated basis
Each row states whether both averages use the same weighted benchmark set. Directional and not-comparable rows remain visible, but they never receive a winner in this template.
Coding
Not comparable- DeepSeek V3.1
- Not measured
- Mistral Medium 3
- Not measured
- Weighted basis
- 0 vs 0 rows
- Reading
- Not comparable
Reasoning
Not comparable- DeepSeek V3.1
- Not measured
- Mistral Medium 3
- Not measured
- Weighted basis
- 0 vs 0 rows
- Reading
- Not comparable
Knowledge
Not comparable- DeepSeek V3.1
- Not measured
- Mistral Medium 3
- Not measured
- Weighted basis
- 0 vs 0 rows
- Reading
- Not comparable
Math
Not comparable- DeepSeek V3.1
- Not measured
- Mistral Medium 3
- Not measured
- Weighted basis
- 0 vs 0 rows
- Reading
- Not comparable
Multilingual
Not comparable- DeepSeek V3.1
- Not measured
- Mistral Medium 3
- Not measured
- Weighted basis
- 0 vs 0 rows
- Reading
- Not comparable
Multimodal
Not comparable- DeepSeek V3.1
- Not measured
- Mistral Medium 3
- Not measured
- Weighted basis
- 0 vs 0 rows
- Reading
- Not comparable
Instruction following
Not comparable- DeepSeek V3.1
- Not measured
- Mistral Medium 3
- Not measured
- Weighted basis
- 0 vs 0 rows
- Reading
- Not comparable
| Category | DeepSeek V3.1 | Mistral Medium 3 | Weighted basis | Reading |
|---|---|---|---|---|
| Agentic | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
| Coding | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
| Reasoning | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
| Knowledge | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
| Math | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
| Multilingual | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
| Multimodal | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
| Instruction following | Not measured | Not measured | Not comparable0 vs 0 rows | Not comparable |
Shape of the matched evidence
Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.
A shared-evidence shape is not available.
BenchLM does not draw a radar or infer missing axes when the matched evidence is too sparse.
What each workload costs
Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.
Chat turn
1K fresh input + 500 output tokens
- DeepSeek V3.1
- Self-hosted; infrastructure cost varies
- Fits in one request
- Mistral Medium 3
- $0.0014
- Fits in one request
DeepSeek V3.1 has no comparable published API token rate.
Repository review
50K fresh input + 3K output tokens
- DeepSeek V3.1
- Self-hosted; infrastructure cost varies
- Fits in one request
- Mistral Medium 3
- $0.026
- Fits in one request
DeepSeek V3.1 has no comparable published API token rate.
Cache-heavy agent loop
200K cached + 20K fresh input + 10K output tokens
- DeepSeek V3.1
- Self-hosted; infrastructure cost varies
- Does not fit in one request
- Cached-input rate unavailable
- Mistral Medium 3
- $0.108
- Does not fit in one request
- Cached input priced at the published list-input rate
DeepSeek V3.1 does not fit this workload in one request. Mistral Medium 3 does not fit this workload in one request. Mistral Medium 3 has no published cached-input rate, so cached tokens use its listed input rate. DeepSeek V3.1 has no comparable published API token rate.
Specification differences
Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.
SpecificationDeepSeek V3.1Mistral Medium 3
Context window
Maximum documented context; output-token limits may be lower.
DeepSeek V3.1
128K
Mistral Medium 3
128K
API model ID
DeepSeek V3.1
Not sourced
Mistral Medium 3
Not sourced
Cached-input rate
A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.
DeepSeek V3.1
No comparable hosted API rate
Mistral Medium 3
Not published
Documented inputs
DeepSeek V3.1
Not sourced
Mistral Medium 3
Not sourced
Documented outputs
DeepSeek V3.1
Not sourced
Mistral Medium 3
Not sourced
Provider availability
DeepSeek V3.1
Not sourced
Mistral Medium 3
Not sourced
Reasoning profile
DeepSeek V3.1
Non-Reasoning
Mistral Medium 3
Non-Reasoning
Weight access
DeepSeek V3.1
Open Weight
Mistral Medium 3
Proprietary
License
DeepSeek V3.1
Open Weight
Mistral Medium 3
Proprietary
Release date
DeepSeek V3.1
2025-08-21
Mistral Medium 3
2026-02-20
If you already use one of these models
- Deployment change
- The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
- Quality signal
- The public evidence has no benchmark result shared by both models, so it does not support a quality verdict.
- Workload cost
- A complete comparable API-rate estimate is not available for both models.
- Context tradeoff
- Both models list 128K.
Run the same representative tasks against both endpoints before changing production traffic.
Frequently asked questions
Which is better, DeepSeek V3.1 or Mistral Medium 3?
The public evidence has no benchmark result shared by both models, so it does not support a quality verdict. The page therefore keeps the decision tied to the specific documented workload.
Which is better for coding, DeepSeek V3.1 or Mistral Medium 3?
The published evidence does not provide a shared weighted coding basis for both models, so BenchLM does not name a coding winner.
Which is better for agentic tasks, DeepSeek V3.1 or Mistral Medium 3?
The published evidence does not provide a shared weighted agentic tasks basis for both models, so BenchLM does not name a agentic tasks winner.
Which costs less, DeepSeek V3.1 or Mistral Medium 3?
Both models do not have comparable published API token rates, so this page does not name a universal price winner.
Which has the larger context window, DeepSeek V3.1 or Mistral Medium 3?
Both models list the same context window, 128K.
Related comparisons
Last updated July 31, 2026
Watch DeepSeek V3.1 vs Mistral Medium 3
One weekly email when material rank, price, or benchmark evidence changes make this matchup worth revisiting.
Read a sample issueJoin 2,000+ readers.