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Mistral Medium 3.1 vs Nemotron 3 Ultra

Nemotron 3 Ultra leads Mistral Medium 3.1 on the Artificial Analysis Intelligence Index, 22.9 to 9.2, and Mistral Medium 3.1 costs 1.2x less per output token ($2.00 vs $2.40 per million). Updated October 22, 2026; 52 benchmarks have a result for both.

Mistral Medium 3.1Mistral AI
Coding
No data
Overall
No data
Output $/M
$2.00
3
Nemotron 3 UltraNVIDIA
Coding
30.0
Overall
53.1
Output $/M
$2.40
49
vs boards won of 52 shared

Mistral Medium 3.1 or Nemotron 3 Ultra: which to pick

Only Nemotron 3 Ultra has a coding score, 30.0 on the Vibe Coding Index; Mistral Medium 3.1 has none, so the two cannot be ranked on coding.

Pick Mistral Medium 3.1 for output tokens 1.2x cheaper ($2.00 vs $2.40 per million) and work measured by Design Arena: data viz or LMArena Text: Polish, where it leads.

Shared results
52
Mistral Medium 3.1 only
22
Nemotron 3 Ultra only
19
Like-for-like categories
8 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
Mistral Medium 3.1 not benchmarked, Nemotron 3 Ultra 30.0 from 3 benchmarks.
Widest category
Agentic work, 30.4 points apart on average over 2 shared benchmarks.
Widest single gap
τ²-Bench Telecom: Mistral Medium 3.1 40.6% against Nemotron 3 Ultra 83.3%, 42.7 points apart on a 0 to 100 scale.
Output price
Mistral Medium 3.1 $2.00 against Nemotron 3 Ultra $2.40 per million output tokens, 1.2x apart.
Context window
Mistral Medium 3.1 takes 131K tokens, Nemotron 3 Ultra 262K.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryMistral Medium 3.1BarsNemotron 3 UltraTies
Coding06
Intelligence01
Agentic work02
Reasoning05
Math02
Knowledge08
Web design17
General218
All shared boards349
CodingLike-for-likeSix of these boards feed the Vibe Coding Index06
Coding benchmarks for Mistral Medium 3.1 and Nemotron 3 Ultra
BenchmarkMistral Medium 3.1Nemotron 3 UltraLeader
AA Coding Index20.549.3Nemotron 3 Ultra
LiveCodeBench (Vals AI)44.8%86.0%Nemotron 3 Ultra
SWE-bench Verified (Vals AI)Not measured69.0%Only Nemotron 3 Ultra measured
Vibe Code Bench (Vals AI)Not measured7.6%Only Nemotron 3 Ultra measured
Code migration (Vals AI)Not measured4.9%Only Nemotron 3 Ultra measured
ProgramBench (Vals AI)Not measured0.0%Only Nemotron 3 Ultra measured
Terminal-Bench 2.1 (Vals AI)Not measured50.9%Only Nemotron 3 Ultra measured
LiveCodeBench (Artificial Analysis run)40.6%Not measuredOnly Mistral Medium 3.1 measured
SciCode32.4%40.3%Nemotron 3 Ultra
Terminal-Bench Hard (Artificial Analysis run)10.6%36.4%Nemotron 3 Ultra
FrontierCodeNot measured13.6%Only Nemotron 3 Ultra measured
WeirdMLNot measured43.5%Only Nemotron 3 Ultra measured
ALE-Bench210.2Not measuredOnly Mistral Medium 3.1 measured
LMArena Text: coding14331468Nemotron 3 Ultra
LMArena Text: software and IT14361468Nemotron 3 Ultra
Neither model has a result on the other 28 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for Mistral Medium 3.1 and Nemotron 3 Ultra
BenchmarkMistral Medium 3.1Nemotron 3 UltraLeader
AA Intelligence Index9.222.9Nemotron 3 Ultra
Epoch Capabilities IndexNot measured146.0Only Nemotron 3 Ultra measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index02
Agentic work benchmarks for Mistral Medium 3.1 and Nemotron 3 Ultra
BenchmarkMistral Medium 3.1Nemotron 3 UltraLeader
AA Agentic Index1.920.1Nemotron 3 Ultra
Finance Agent (Vals AI)Not measured37.7%Only Nemotron 3 Ultra measured
Legal Research Bench (Vals AI)Not measured15.4%Only Nemotron 3 Ultra measured
Excel Modeling Benchmark (Vals AI)Not measured31.7%Only Nemotron 3 Ultra measured
τ²-Bench Telecom40.6%83.3%Nemotron 3 Ultra
APEX-AgentsNot measured22.7%Only Nemotron 3 Ultra measured
MCP AtlasNot measured63.1%Only Nemotron 3 Ultra measured
Neither model has a result on the other 35 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index05
Reasoning benchmarks for Mistral Medium 3.1 and Nemotron 3 Ultra
BenchmarkMistral Medium 3.1Nemotron 3 UltraLeader
GPQA DiamondNot measured86.1%Only Nemotron 3 Ultra measured
MMMU Pro (Vals AI)63.0%Not measuredOnly Mistral Medium 3.1 measured
GPQA Diamond (Artificial Analysis run)58.8%86.7%Nemotron 3 Ultra
Humanity's Last Exam (Artificial Analysis run)4.7%28.4%Nemotron 3 Ultra
GPQA Diamond (Epoch AI run)Not measured85.4%Only Nemotron 3 Ultra measured
Mystery game puzzlesNot measured20.0%Only Nemotron 3 Ultra measured
LMArena Text: hard prompts14261452Nemotron 3 Ultra
LMArena Text: expert14081472Nemotron 3 Ultra
LMArena Text: hard prompts in English14351453Nemotron 3 Ultra
LMArena Vision: diagrams1175Not measuredOnly Mistral Medium 3.1 measured
LMArena Vision: homework1165Not measuredOnly Mistral Medium 3.1 measured
Neither model has a result on the other 12 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index02
Math benchmarks for Mistral Medium 3.1 and Nemotron 3 Ultra
BenchmarkMistral Medium 3.1Nemotron 3 UltraLeader
AIME42.3%Not measuredOnly Mistral Medium 3.1 measured
MATH 500 (Vals AI)87.0%Not measuredOnly Mistral Medium 3.1 measured
MGSM (Vals AI)90.9%Not measuredOnly Mistral Medium 3.1 measured
AA Math Index38.3Not measuredOnly Mistral Medium 3.1 measured
AIME 2025 (Artificial Analysis run)38.3%Not measuredOnly Mistral Medium 3.1 measured
OTIS Mock AIMENot measured86.7%Only Nemotron 3 Ultra measured
ProofBenchNot measured2.0%Only Nemotron 3 Ultra measured
LMArena Text: math14081457Nemotron 3 Ultra
LMArena Text: mathematical work14121461Nemotron 3 Ultra
Neither model has a result on the other 5 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index08
Knowledge benchmarks for Mistral Medium 3.1 and Nemotron 3 Ultra
BenchmarkMistral Medium 3.1Nemotron 3 UltraLeader
MMLU Pro75.3%85.8%Nemotron 3 Ultra
LegalBench (Vals AI)62.0%82.1%Nemotron 3 Ultra
CorpFin (Vals AI)50.7%65.5%Nemotron 3 Ultra
TaxEval (Vals AI)70.3%73.1%Nemotron 3 Ultra
MortgageTax (Vals AI)36.5%Not measuredOnly Mistral Medium 3.1 measured
MedQA (Vals AI)78.2%Not measuredOnly Mistral Medium 3.1 measured
MedCode (Vals AI)Not measured38.6%Only Nemotron 3 Ultra measured
MMLU Pro (Artificial Analysis run)68.3%Not measuredOnly Mistral Medium 3.1 measured
LMArena Text: science14441465Nemotron 3 Ultra
LMArena Text: medicine and healthcare14491456Nemotron 3 Ultra
LMArena Text: legal and government14391452Nemotron 3 Ultra
LMArena Text: business and finance14181434Nemotron 3 Ultra
Neither model has a result on the other 8 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index17
Web design benchmarks for Mistral Medium 3.1 and Nemotron 3 Ultra
BenchmarkMistral Medium 3.1Nemotron 3 UltraLeader
Design Arena: websites11321145Nemotron 3 Ultra
Design Arena: UI components10971135Nemotron 3 Ultra
Design Arena: game dev10731138Nemotron 3 Ultra
Design Arena: data viz11441141Mistral Medium 3.1
Design Arena: 3D10811131Nemotron 3 Ultra
Design Arena: all code categories11201146Nemotron 3 Ultra
Design Arena: SVG9921069Nemotron 3 Ultra
Design Arena: ASCII art9971100Nemotron 3 Ultra
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index218
General benchmarks for Mistral Medium 3.1 and Nemotron 3 Ultra
BenchmarkMistral Medium 3.1Nemotron 3 UltraLeader
IFBench39.8%81.4%Nemotron 3 Ultra
Long context reasoning (AA-LCR)42.7%79.3%Nemotron 3 Ultra
DTBench67.5%90.1%Nemotron 3 Ultra
LMCA19.1%36.9%Nemotron 3 Ultra
LMArena Text14241445Nemotron 3 Ultra
LMArena Text: instruction following13981418Nemotron 3 Ultra
LMArena Text: creative writing13911399Nemotron 3 Ultra
LMArena Vision1172Not measuredOnly Mistral Medium 3.1 measured
LMArena Text: English14381455Nemotron 3 Ultra
LMArena Text: non-English14081427Nemotron 3 Ultra
LMArena Text: Chinese14471497Nemotron 3 Ultra
LMArena Text: German14321472Nemotron 3 Ultra
LMArena Text: Japanese1379Not measuredOnly Mistral Medium 3.1 measured
LMArena Text: Korean13801384Nemotron 3 Ultra
LMArena Text: French14601472Nemotron 3 Ultra
LMArena Text: Spanish14331455Nemotron 3 Ultra
LMArena Text: Russian14111417Nemotron 3 Ultra
LMArena Text: Polish14301385Mistral Medium 3.1
LMArena Text: multi-turn14181411Mistral Medium 3.1
LMArena Text: longer queries14061437Nemotron 3 Ultra
LMArena Text: writing and language13951406Nemotron 3 Ultra
LMArena Text: entertainment and media13901397Nemotron 3 Ultra
LMArena Vision: English1179Not measuredOnly Mistral Medium 3.1 measured
LMArena Vision: Chinese1190Not measuredOnly Mistral Medium 3.1 measured
LMArena Vision: reading text1175Not measuredOnly Mistral Medium 3.1 measured
LMArena Vision: humor1168Not measuredOnly Mistral Medium 3.1 measured
LMArena Vision: captioning1145Not measuredOnly Mistral Medium 3.1 measured
LMArena Vision: recognizing things1147Not measuredOnly Mistral Medium 3.1 measured
LMArena Vision: creative writing1200Not measuredOnly Mistral Medium 3.1 measured
Neither model has a result on the other 19 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Mistral Medium 3.1 and Nemotron 3 Ultra
BenchmarkMistral Medium 3.1Nemotron 3 UltraLeader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

Mistral Medium 3.1$0.0014Fits in one request
Nemotron 3 Ultra$0.0018Fits in one request

Mistral Medium 3.1 costs less

Repository review

50K input + 3K output tokens

Mistral Medium 3.1$0.026Fits in one request
Nemotron 3 Ultra$0.037Fits in one request

Mistral Medium 3.1 costs less

Agent loop

200K input + 10K output tokens

Mistral Medium 3.1$0.100Exceeds the context window
Nemotron 3 Ultra$0.144Fits in one request

Mistral Medium 3.1 costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of Mistral Medium 3.1 and Nemotron 3 Ultra
SpecificationMistral Medium 3.1NVIDIA Nemotron 3 Ultra
MakerMistral AINVIDIA
WeightsNo public weights listedOpen weights
ReleasedAugust 13, 2025June 4, 2026
Context window131K262K
Input $/Mtok$0.40$0.60
Output $/Mtok$2.00$2.40
Coding indexNot benchmarked30.0
Independent measurements behind it03
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Mistral Medium 3.1 better than Nemotron 3 Ultra for coding?

Only Nemotron 3 Ultra has a coding score, 30.0 on the Vibe Coding Index; Mistral Medium 3.1 has none, so the two cannot be ranked on coding. Pick Mistral Medium 3.1 for output tokens 1.2x cheaper ($2.00 vs $2.40 per million) and work measured by Design Arena: data viz or LMArena Text: Polish, where it leads.

Which is cheaper, Mistral Medium 3.1 or Nemotron 3 Ultra?

Mistral Medium 3.1 costs $0.40 per million input tokens and $2.00 per million output tokens; Nemotron 3 Ultra costs $0.60 and $2.40. Cost per solved task is known for neither of them.

Which has the bigger context window, Mistral Medium 3.1 or Nemotron 3 Ultra?

Nemotron 3 Ultra, with 262K tokens against 131K.

How many benchmarks is the Mistral Medium 3.1 vs Nemotron 3 Ultra comparison based on?

52 benchmarks have a result for both models as of October 22, 2026. Mistral Medium 3.1's coding index rests on 0 independent benchmarks and Nemotron 3 Ultra's on 3. Where only one model has a result, the page says so instead of naming a winner.

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