Compare / MiniMax M3.1 Flash vs Mistral Medium 3.5

MiniMax M3.1 Flash vs Mistral Medium 3.5

Which is cheaper, which is more capable, and which does better at each kind of work, from 82 results on 5 sources that measured both models.

MiniMaxMiniMax M3.1 Flash Released 19 Oct 2026 · $0.15 in · $0.60 out
Mistral AIMistral Medium 3.5 Released 28 Apr 2026 · $1.50 in · $7.50 out
MiniMax M3.1 Flash wins 498 too close to callMistral Medium 3.5 wins 25

Of the 82 results both models have, the better value on each. Results whose reported ranges overlap are too close to call.

Results as of 20 October 2026 (catalogue release 2026-10-20-96eb40c3ec63). See also MiniMax vs Mistral AI, every model from both labs.

MiniMax M3.1 Flash or Mistral Medium 3.5? The short answer

Pick MiniMax M3.1 Flash: it scores higher (Spring Prompt overall 47 against 16) and costs less.

  • Spring Prompt overall: MiniMax M3.1 Flash 47, Mistral Medium 3.5 16 (out of 100; how the score works).
  • MiniMax M3.1 Flash is cheaper: $0.26 against $3.00 per million tokens, 11 times less.
  • MiniMax M3.1 Flash scores higher on the Artificial Analysis Intelligence Index: 42.4 against 14.2.
  • MiniMax M3.1 Flash is newer: released 19 Oct 2026, against 28 Apr 2026 for Mistral Medium 3.5.
  • On our own benchmarks, on the results both models have: MiniMax M3.1 Flash does better for product listings, decks from an analysis and marketing planning.
  • On third-party benchmarks, on the results both models have: MiniMax M3.1 Flash does better for agents and tool use and reasoning and knowledge.

Head to head

47
Spring Prompt overall
16
42.4
Intelligence Index
14.2
$0.26
Price per million tokens, blendedlower is better
$3.00
159
Output speed, tokens a second
157
1,048,576
Context window, tokens
262,144

Every fact side by side

MiniMax M3.1 FlashMistral Medium 3.5
Price per million tokens$0.15 in · $0.60 out$1.50 in · $7.50 out
Blended (3 in : 1 out)$0.26$3.00
Cheapest host, blended–$3.00 (Mistral)
Cached input, per million$0.015 cached input$0.15 cached input
Intelligence Index42.414.2
Spring Prompt overall4716
Output speed, tokens a second159157
Context window1,048,576 tokens262,144 tokens
Released19 Oct 2026 (newer)28 Apr 2026
WeightsClosedClosed
Developer based inChinaFrance

Prices are the developer's list price where we have read it, otherwise the typical host on OpenRouter; see every model's price. Intelligence and speed from Artificial Analysis.

Which is better for what

Each model's rank among the models on sale today, for each kind of work, from our own benchmarks and licensed sources. Further right is better; the better rank is in green.

Product listingsTurning a sparse product feed and photos into listings that can go live 7 of 24 18 of 24
Decks from an analysisTurning a finished analysis into a deck you could present as it is 14 of 24 22 of 24
User surveysPlanning a user survey and reading its results without being misled 13 of 13 11 of 13
Marketing planningPlanning a year of ad spend without overspending 12 of 24 24 of 24
Agents and tool useMulti-step tasks with tools: support desks, coding agents, function calls 32 of 168 97 of 168
Reasoning and knowledgeHard questions across science, maths and general knowledge 18 of 202 126 of 202
WritingWhat people prefer in blind comparisons, and judged writing quality not measured 87 of 189
Sticking to the factsSummarising without inventing things, and factual answers not measured 101 of 153
Speed under pressureGood decisions against a real clock (fast chess) not measured 9 of 27

From our research

Every shared result

Each model's best result on every measure both have, grouped by benchmark, with the setting that produced it. Under each measure, every model that benchmark has measured is a grey tick, best to the right, so you can see where the two sit in the field. The headline measures of each benchmark come first; the rest are under "Show all". Green marks the better value; where a source reports ranges that overlap, neither is marked.

MeasureMiniMax M3.1 FlashMistral Medium 3.5
CatalogBench measured by Spring Prompt · 3 results
Cost per productUS dollars, lower is better 1 · 10 of 24 measured $0 $0.0080
Reliably publish-ready% of products, higher is better 9 · 20 of 24 measured 50.0% 17.9%
Reliably publish-ready · sales brief% of products, higher is better 6 · 12 of 24 measured 37.5% 10.7%
DeckBench measured by Spring Prompt · 3 results
Cost per deckUS dollars, lower is better 1 · 8 of 24 measured $0 $0.0448
Deck ratingrating, higher is betterThe rating weighs each win by how strong the other deck was; the win rate counts wins against whichever decks a model happened to meet, so the two can disagree. 14 · 22 of 24 measured 1,090 656
Accurate decks% of tasks, higher is better 9 · 20 of 24 measured 50.0% 0.0%
ROASBench measured by Spring Prompt · 3 results
Overall scorescore out of 100, higher is better 12 · 24 of 24 measured 40.3 15.2
Audience scorescore out of 100, higher is better 12 · 24 of 24 measured 60.8 28.5
Business scorescore out of 100, higher is better 10 · 24 of 24 measured 38.9 3.4
SurveyBench measured by Spring Prompt · 3 results
Analysis ratingrating, higher is betterThe rating weighs each win by how strong the other analysis was; the win rate counts wins against whichever analyses a model happened to meet, so the two can disagree. 13 · 11 of 13 measured 441 597
Analysis scorepoints of 100, higher is better 13 · 10 of 13 measured 7.90 56.7
Head-to-head win rate% of comparisons, higher is betterThe rating weighs each win by how strong the other analysis was; the win rate counts wins against whichever analyses a model happened to meet, so the two can disagree. 13 · 11 of 13 measured 15.9% 24.3%
Artificial Analysis reported by Artificial Analysis · 3 results
Artificial Analysis Intelligence Indexindex score, higher is better 21 · 139 of 249 measured 42.4 14.2
Humanity's Last Exam% of questions, higher is better 14 · 137 of 248 measured 48.0% 13.8%
Terminal-Bench 4.0% of tasks, higher is better 22 · 70 of 118 measured 25.8% 0.0%
Show all 82 results (67 more)
MeasureMiniMax M3.1 FlashMistral Medium 3.5
CatalogBench measured by Spring Prompt · 28 results
Channel compliance% of products, higher is better 1 · 1 of 24 measured 100.0% 100.0%
Channel rules broken% of products, lower is better 12 · 1 of 24 measured 0.6% 0.0%
Channel rules broken · sales brief% of products, lower is better 1 · 18 of 24 measured 0.0% 1.2%
Claims to check% of products, lower is better 1 · 22 of 24 measured 0.0% 3.6%
Claims to check · sales brief% of products, lower is better 1 · 22 of 24 measured 0.0% 25.6%
Conflicts caught% of conflicts, higher is better 1 · 23 of 24 measured 100.0% 90.9%
Content quality% of checks, higher is better 17 · 23 of 24 measured 95.8% 94.1%
Content quality · sales brief% of checks, higher is better 17 · 21 of 24 measured 96.0% 94.1%
Decision accuracy% of decisions, higher is better 16 · 22 of 24 measured 95.6% 92.6%
Failed outputs% of products, lower is better 22 · 1 of 24 measured 1.8% 0.0%
Failed outputs · sales brief% of products, lower is better 22 · 1 of 24 measured 1.8% 0.0%
Field accuracy% of missing fields, higher is better 19 · 20 of 24 measured 92.0% 91.7%
Invented values% of filled values, lower is better 22 · 1 of 24 measured 3.8% 0.0%
Missing UK information% of products, lower is better 1 · 1 of 24 measured 0.0% 0.0%
Missing UK information · sales brief% of products, lower is better 1 · 1 of 24 measured 0.0% 0.0%
Not findable% of products, lower is better 16 · 23 of 24 measured 7.1% 14.3%
Not findable · sales brief% of products, lower is better 12 · 21 of 24 measured 4.2% 10.1%
Publish-ready listings% of products, higher is better 11 · 22 of 24 measured 63.1% 29.8%
Publish-ready listings · sales brief% of products, higher is better 7 · 15 of 24 measured 57.1% 17.3%
Time per productseconds, lower is better 19 · 2 of 24 measured 32.0 4.90
Unsupported claimsclaims per product, lower is better 6 · 22 of 24 measured 0.39 1.74
Unsupported claims% of products, lower is better 5 · 22 of 24 measured 7.7% 49.4%
Unsupported claims · sales briefclaims per product, lower is better 6 · 18 of 24 measured 0.60 3.55
Unsupported claims · sales brief% of products, lower is better 5 · 16 of 24 measured 16.1% 76.8%
Wrong attributes% of products, lower is better 20 · 22 of 24 measured 22.6% 31.0%
Wrong attributes · sales brief% of products, lower is better 20 · 23 of 24 measured 21.4% 36.3%
Wrong category or variant% of products, lower is better 20 · 24 of 24 measured 4.2% 11.3%
Wrong category or variant · sales brief% of products, lower is better 21 · 24 of 24 measured 4.8% 13.1%
DeckBench measured by Spring Prompt · 14 results
Caveat dropped% of tasks, lower is better 24 · 1 of 24 measured 33.3% 0.0%
Clean layout% of tasks, higher is better 23 · 6 of 24 measured 0.0% 66.7%
Design quality% of the maximum, higher is better 21 · 22 of 24 measured 46.2% 43.7%
Draft figure quoted% of tasks, lower is better 12 · 19 of 24 measured 33.3% 50.0%
Findings missing% of tasks, lower is better 24 · 1 of 24 measured 50.0% 0.0%
Head-to-head win rate% of comparisons, higher is betterThe rating weighs each win by how strong the other deck was; the win rate counts wins against whichever decks a model happened to meet, so the two can disagree. 15 · 22 of 24 measured 48.6% 25.8%
Layout defects% of tasks, lower is better 23 · 6 of 24 measured 100.0% 33.3%
Misleading metric used% of tasks, lower is better 24 · 1 of 24 measured 33.3% 0.0%
Presentable decks% of tasks, higher is better 12 · 12 of 24 measured 0.0% 0.0%
Recommendation late or wrong% of tasks, lower is better 13 · 17 of 24 measured 33.3% 50.0%
Slides needing work% of tasks, lower is better 21 · 11 of 24 measured 83.3% 50.0%
Time per deckseconds, lower is better 20 · 2 of 24 measured 330 25.0
Unsupported claims% of tasks, lower is better 21 · 17 of 24 measured 50.0% 33.3%
Unsupported numbers% of tasks, lower is better 24 · 1 of 24 measured 50.0% 0.0%
ROASBench measured by Spring Prompt · 6 results
Consistency scorescore out of 100, higher is better 17 · 23 of 24 measured 17.3 8.7
Contribution profitsimulated US dollars, higher is better 5 · 23 of 24 measured $693,379 −$159,882
Cost of a runUS dollars, lower is better 1 · 10 of 24 measured $0 $0.15
Months over budgetmonths of 12, lower is better 1 · 24 of 24 measured 0 3
Planning scorescore out of 100, higher is better 21 · 2 of 24 measured 54.2 55.2
Return on ad spendprofit per $1 spent, higher is better 9 · 23 of 24 measured $0.52 −$0.17
SurveyBench measured by Spring Prompt · 15 results
Leading or double-barrelled questions% of tasks, lower is better 12 · 8 of 13 measured 77.8% 55.6%
Mistaken next steps% of tasks, lower is better 13 · 12 of 13 measured 100.0% 77.8%
Numbers right% of answers, higher is better 1 · 10 of 13 measured 100.0% 75.5%
Objectives unanswerable% of tasks, lower is better 13 · 7 of 13 measured 66.7% 11.1%
Precision ignored% of tasks, lower is better 10 · 11 of 13 measured 66.7% 100.0%
Research scorepoints of 100, higher is better 13 · 10 of 13 measured 16.4 64.2
Sound research% of tasks, higher is better 6 · 6 of 13 measured 0.0% 0.0%
Stakeholder's view presumed% of tasks, lower is better 12 · 11 of 13 measured 55.6% 33.3%
Survey plan scorepoints of 100, higher is better 13 · 11 of 13 measured 36.1 81.5
Survey structure% of tasks, lower is better 13 · 3 of 13 measured 77.8% 11.1%
Traps handled% of traps, higher is better 8 · 12 of 13 measured 75.0% 59.4%
Traps missed% of tasks, lower is better 10 · 10 of 13 measured 100.0% 100.0%
Unsupported findings% of tasks, lower is better 10 · 10 of 13 measured 100.0% 100.0%
Wrong numbers% of tasks, lower is better 10 · 11 of 13 measured 88.9% 100.0%
Wrong recommendation% of tasks, lower is better 13 · 8 of 13 measured 100.0% 44.4%
Artificial Analysis reported by Artificial Analysis · 4 results
Long-context reasoning (AA-LCR)% of questions, higher is better 45 · 118 of 239 measured 79.7% 69.3%
Output speedtokens per second, higher is better 21 · 22 of 78 measured 159 157
SciCode% of problems, higher is better 36 · 83 of 119 measured 53.4% 40.2%
Time to first answer tokenseconds, lower is better 51 · 52 of 78 measured 13.3 13.3

Quick answers

Is MiniMax M3.1 Flash better than Mistral Medium 3.5?

Pick MiniMax M3.1 Flash: it scores higher (Spring Prompt overall 47 against 16) and costs less.

Which is cheaper, MiniMax M3.1 Flash or Mistral Medium 3.5?

MiniMax M3.1 Flash is cheaper: $0.26 against $3.00 per million tokens, 11 times less.

Which is faster, MiniMax M3.1 Flash or Mistral Medium 3.5?

MiniMax M3.1 Flash writes about 159 tokens a second on its usual API, against 157 for Mistral Medium 3.5 (Artificial Analysis).

Which is better for product listings, MiniMax M3.1 Flash or Mistral Medium 3.5?

MiniMax M3.1 Flash ranks 7 of 24 models on sale for turning a sparse product feed and photos into listings that can go live, against 18 for Mistral Medium 3.5.

Which is better for decks from an analysis, MiniMax M3.1 Flash or Mistral Medium 3.5?

MiniMax M3.1 Flash ranks 14 of 24 models on sale for turning a finished analysis into a deck you could present as it is, against 22 for Mistral Medium 3.5.

Which is better for user surveys, MiniMax M3.1 Flash or Mistral Medium 3.5?

Mistral Medium 3.5 ranks 11 of 13 models on sale for planning a user survey and reading its results without being misled, against 13 for MiniMax M3.1 Flash.

Which is better for marketing planning, MiniMax M3.1 Flash or Mistral Medium 3.5?

MiniMax M3.1 Flash ranks 12 of 24 models on sale for planning a year of ad spend without overspending, against 24 for Mistral Medium 3.5.

Which has the bigger context window, MiniMax M3.1 Flash or Mistral Medium 3.5?

MiniMax M3.1 Flash: 1,048,576 tokens, against 262,144 for Mistral Medium 3.5.

Run MiniMax M3.1 Flash and Mistral Medium 3.5 on your own prompt

Benchmarks aren't your data. Try both side by side in the playground, with the cost of every answer.