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Gemini 2.5 Pro vs Mistral Medium 3

Updated October 21, 2026. 57 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Gemini 2.5 Pro Replace Mistral Medium 3
Gemini 2.5 ProGoogle
Coding
19.1
Overall
16.1
Output $/M
$10.00
56
Mistral Medium 3Mistral AI
Coding
No data
Overall
9.0
Output $/M
$2.00
1
vs boards won of 57 shared

Decision reading

Only Gemini 2.5 Pro has a coding score, 19.1 on the Vibe Coding Index; Mistral Medium 3 has none, so the two cannot be ranked on coding.

Mistral Medium 3 has the edge where output tokens cost 5.0x less, and where the benchmark that matters is Design Arena: 3D, where it leads.

Model AGemini 2.5 ProGoogle19.1/1003 independent benchmarks$0.64 per solved taskModel BMistral Medium 3Mistral AINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
57
Gemini 2.5 Pro only
30
Mistral Medium 3 only
0
Like-for-like categories
8 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

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
Gemini 2.5 Pro 19.1 from 3 benchmarks, Mistral Medium 3 not benchmarked.
Widest category
Math, 36.9 points apart on average over 4 shared benchmarks.
Widest single gap
AA Math Index: Gemini 2.5 Pro 87.7 against Mistral Medium 3 30.3, 57.4 points apart on a 0 to 100 scale.
Output price
Gemini 2.5 Pro $10.00 against Mistral Medium 3 $2.00 per million output tokens, 5.0x apart.
Context window
Gemini 2.5 Pro takes 1.05M tokens, Mistral Medium 3 131K.

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
CategoryGemini 2.5 ProBarsMistral Medium 3Ties
Coding40
Intelligence20
Agentic work10
Reasoning70
Math40
Knowledge50
Web design51
General280
All shared boards561
CodingLike-for-likeSix of these boards feed the Vibe Coding Index40
Coding benchmarks for Gemini 2.5 Pro and Mistral Medium 3
BenchmarkGemini 2.5 ProMistral Medium 3Leader
SWE-bench Verified53.6%Not measuredOnly Gemini 2.5 Pro measured
LMArena WebDev1226Not measuredOnly Gemini 2.5 Pro measured
AA Coding Index33.3Not measuredOnly Gemini 2.5 Pro measured
SWE-bench Verified (Vals AI)54.4%Not measuredOnly Gemini 2.5 Pro measured
Vibe Code Bench (Vals AI)0.4%Not measuredOnly Gemini 2.5 Pro measured
LiveCodeBench (Artificial Analysis run)80.1%40.0%Gemini 2.5 Pro
SciCode46.3%Not measuredOnly Gemini 2.5 Pro measured
Terminal-Bench Hard (Artificial Analysis run)26.5%3.8%Gemini 2.5 Pro
Terminal-Bench32.6%Not measuredOnly Gemini 2.5 Pro measured
GSO-Bench3.9%Not measuredOnly Gemini 2.5 Pro measured
WeirdML54.0%Not measuredOnly Gemini 2.5 Pro measured
LMArena Text: coding14521385Gemini 2.5 Pro
LMArena Text: software and IT14591385Gemini 2.5 Pro
LMArena WebDev: HTML1235Not measuredOnly Gemini 2.5 Pro measured
LMArena WebDev: from an image1285Not measuredOnly Gemini 2.5 Pro measured
Neither model has a result on the other 23 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Gemini 2.5 Pro and Mistral Medium 3
BenchmarkGemini 2.5 ProMistral Medium 3Leader
AA Intelligence Index16.19.0Gemini 2.5 Pro
Epoch Capabilities Index145.1134.0Gemini 2.5 Pro
Agentic workLike-for-likePublic boards, shown as published, kept out of the index10
Agentic work benchmarks for Gemini 2.5 Pro and Mistral Medium 3
BenchmarkGemini 2.5 ProMistral Medium 3Leader
AA Agentic Index1.6Not measuredOnly Gemini 2.5 Pro measured
τ²-Bench Telecom54.1%24.3%Gemini 2.5 Pro
GDPval23.3%Not measuredOnly Gemini 2.5 Pro measured
DeepResearch Bench41.5%Not measuredOnly Gemini 2.5 Pro measured
Vending-Bench 2$574Not measuredOnly Gemini 2.5 Pro measured
Neither model has a result on the other 34 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index70
Reasoning benchmarks for Gemini 2.5 Pro and Mistral Medium 3
BenchmarkGemini 2.5 ProMistral Medium 3Leader
GPQA Diamond (Artificial Analysis run)84.4%57.8%Gemini 2.5 Pro
Humanity's Last Exam (Artificial Analysis run)22.5%4.1%Gemini 2.5 Pro
GPQA Diamond (Epoch AI run)85.3%Not measuredOnly Gemini 2.5 Pro measured
ARC-AGI41.0%Not measuredOnly Gemini 2.5 Pro measured
ARC-AGI-24.9%Not measuredOnly Gemini 2.5 Pro measured
LMArena Text: hard prompts14551364Gemini 2.5 Pro
LMArena Text: expert14521342Gemini 2.5 Pro
LMArena Text: hard prompts in English14531374Gemini 2.5 Pro
LMArena Vision: diagrams12741155Gemini 2.5 Pro
LMArena Vision: homework12811165Gemini 2.5 Pro
Neither model has a result on the other 11 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index40
Math benchmarks for Gemini 2.5 Pro and Mistral Medium 3
BenchmarkGemini 2.5 ProMistral Medium 3Leader
AA Math Index87.730.3Gemini 2.5 Pro
AIME 2025 (Artificial Analysis run)87.7%30.3%Gemini 2.5 Pro
OTIS Mock AIME84.7%Not measuredOnly Gemini 2.5 Pro measured
FrontierMath, tiers 1 to 324.6%Not measuredOnly Gemini 2.5 Pro measured
FrontierMath, tier 40.0%Not measuredOnly Gemini 2.5 Pro measured
LMArena Text: math14501353Gemini 2.5 Pro
LMArena Text: mathematical work14541354Gemini 2.5 Pro
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index50
Knowledge benchmarks for Gemini 2.5 Pro and Mistral Medium 3
BenchmarkGemini 2.5 ProMistral Medium 3Leader
CaseLaw (Vals AI)63.9%Not measuredOnly Gemini 2.5 Pro measured
CorpFin (Vals AI)60.8%Not measuredOnly Gemini 2.5 Pro measured
MortgageTax (Vals AI)68.9%Not measuredOnly Gemini 2.5 Pro measured
MedCode (Vals AI)50.6%Not measuredOnly Gemini 2.5 Pro measured
MMLU Pro (Artificial Analysis run)86.2%76.0%Gemini 2.5 Pro
LMArena Text: science14801381Gemini 2.5 Pro
LMArena Text: medicine and healthcare14761381Gemini 2.5 Pro
LMArena Text: legal and government14801384Gemini 2.5 Pro
LMArena Text: business and finance14391352Gemini 2.5 Pro
Neither model has a result on the other 8 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index51
Web design benchmarks for Gemini 2.5 Pro and Mistral Medium 3
BenchmarkGemini 2.5 ProMistral Medium 3Leader
Design Arena: websites11671079Gemini 2.5 Pro
Design Arena: UI components11401024Gemini 2.5 Pro
Design Arena: game dev11111018Gemini 2.5 Pro
Design Arena: data viz12211034Gemini 2.5 Pro
Design Arena: 3D10801083Mistral Medium 3
Design Arena: all code categories11521069Gemini 2.5 Pro
Neither model has a result on the other 3 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index280
General benchmarks for Gemini 2.5 Pro and Mistral Medium 3
BenchmarkGemini 2.5 ProMistral Medium 3Leader
SAGE (Vals AI)41.9%Not measuredOnly Gemini 2.5 Pro measured
MedScribe (Vals AI)73.5%Not measuredOnly Gemini 2.5 Pro measured
IFBench48.7%39.3%Gemini 2.5 Pro
Long context reasoning (AA-LCR)69.0%31.3%Gemini 2.5 Pro
DTBench82.4%62.3%Gemini 2.5 Pro
LMCA34.8%Not measuredOnly Gemini 2.5 Pro measured
Creative writing (Lech Mazur)83.8%Not measuredOnly Gemini 2.5 Pro measured
LMArena Text14581370Gemini 2.5 Pro
LMArena Text: instruction following14371338Gemini 2.5 Pro
LMArena Text: creative writing14541343Gemini 2.5 Pro
LMArena Vision12631157Gemini 2.5 Pro
LMArena Text: English14581385Gemini 2.5 Pro
LMArena Text: non-English14521353Gemini 2.5 Pro
LMArena Text: Chinese15071374Gemini 2.5 Pro
LMArena Text: German14871377Gemini 2.5 Pro
LMArena Text: Japanese14611316Gemini 2.5 Pro
LMArena Text: Korean14341304Gemini 2.5 Pro
LMArena Text: French14731368Gemini 2.5 Pro
LMArena Text: Spanish14741364Gemini 2.5 Pro
LMArena Text: Russian14611359Gemini 2.5 Pro
LMArena Text: Polish14791371Gemini 2.5 Pro
LMArena Text: multi-turn14531384Gemini 2.5 Pro
LMArena Text: longer queries14491360Gemini 2.5 Pro
LMArena Text: writing and language14541352Gemini 2.5 Pro
LMArena Text: entertainment and media14411335Gemini 2.5 Pro
LMArena Vision: English12611172Gemini 2.5 Pro
LMArena Vision: Chinese13001161Gemini 2.5 Pro
LMArena Vision: reading text12701154Gemini 2.5 Pro
LMArena Vision: humor12621145Gemini 2.5 Pro
LMArena Vision: captioning13041094Gemini 2.5 Pro
LMArena Vision: recognizing things12831141Gemini 2.5 Pro
LMArena Vision: creative writing12651146Gemini 2.5 Pro
LMArena Document1421Not measuredOnly Gemini 2.5 Pro measured
Neither model has a result on the other 13 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Gemini 2.5 Pro and Mistral Medium 3
BenchmarkGemini 2.5 ProMistral Medium 3Leader
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

Gemini 2.5 Pro$0.0063Fits in one request
Mistral Medium 3$0.0014Fits in one request

Mistral Medium 3 costs less

Repository review

50K input + 3K output tokens

Gemini 2.5 Pro$0.092Fits in one request
Mistral Medium 3$0.026Fits in one request

Mistral Medium 3 costs less

Agent loop

200K input + 10K output tokens

Gemini 2.5 Pro$0.350Fits in one request
Mistral Medium 3$0.100Exceeds the context window

Mistral Medium 3 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 Gemini 2.5 Pro and Mistral Medium 3
SpecificationGoogle Gemini 2.5 ProMistral Medium 3
MakerGoogleMistral AI
WeightsNo public weights listedNo public weights listed
ReleasedJune 17, 2025May 7, 2025
Context window1.05M131K
Input $/Mtok$1.25$0.40
Output $/Mtok$10.00$2.00
Coding index19.1Not benchmarked
Independent measurements behind it30
Cost per solved task$0.64Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Gemini 2.5 Pro better than Mistral Medium 3 for coding?

Only Gemini 2.5 Pro has a coding score, 19.1 on the Vibe Coding Index; Mistral Medium 3 has none, so the two cannot be ranked on coding. Mistral Medium 3 has the edge where output tokens cost 5.0x less, and where the benchmark that matters is Design Arena: 3D, where it leads.

Which is cheaper, Gemini 2.5 Pro or Mistral Medium 3?

Gemini 2.5 Pro costs $1.25 per million input tokens and $10.00 per million output tokens; Mistral Medium 3 costs $0.40 and $2.00. Cost per solved task is known for Gemini 2.5 Pro only.

Which has the bigger context window, Gemini 2.5 Pro or Mistral Medium 3?

Gemini 2.5 Pro, with 1.05M tokens against 131K.

How many benchmarks is the Gemini 2.5 Pro vs Mistral Medium 3 comparison based on?

57 benchmarks have a result for both models as of October 21, 2026. Gemini 2.5 Pro's coding index rests on 3 independent benchmarks and Mistral Medium 3's on 0. Where only one model has a result, the page says so instead of naming a winner.

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