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Mistral Medium 3.5 vs Inkling

Inkling leads Mistral Medium 3.5 on coding, 31.5 to 25.5 on the Vibe Coding Index, and Inkling costs 1.9x less per output token ($4.05 vs $7.50 per million). Updated October 22, 2026; 67 benchmarks have a result for both.

Replace Mistral Medium 3.5 Replace Inkling
Mistral Medium 3.5Mistral AI
Coding
25.5
Overall
37.3
Output $/M
$7.50
3
T InklingThinking Machines
Coding
31.5
Overall
46.5
Output $/M
$4.05
64
vs boards won of 67 shared

Mistral Medium 3.5 or Inkling: which to pick

Pick Inkling for coding: it scores 31.5 on the Vibe Coding Index against 25.5 for Mistral Medium 3.5.

Pick Mistral Medium 3.5 for work measured by ProofBench or SAGE (Vals AI), where it leads.

Model AMistral Medium 3.5Mistral AI25.5/1003 independent benchmarks$6.02 per solved taskModel BInklingThinking Machines31.5/1006 independent benchmarks$0.76 per solved task
Shared results
67
Mistral Medium 3.5 only
14
Inkling only
35
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 3.5 25.5 from 3 benchmarks, Inkling 31.5 from 6 benchmarks.
Widest category
Agentic work, 17.4 points apart on average over 5 shared benchmarks.
Widest single gap
GPQA Diamond: Mistral Medium 3.5 34.9% against Inkling 87.1%, 52.3 points apart on a 0 to 100 scale.
Output price
Mistral Medium 3.5 $7.50 against Inkling $4.05 per million output tokens, 1.9x apart.
Context window
Mistral Medium 3.5 takes 262K tokens, Inkling 524K.

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 3.5BarsInklingTies
Coding012
Intelligence02
Agentic work05
Reasoning06
Math12
Knowledge09
Web design08
General220
All shared boards364
CodingLike-for-likeSix of these boards feed the Vibe Coding Index012
Coding benchmarks for Mistral Medium 3.5 and Inkling
BenchmarkMistral Medium 3.5InklingLeader
LiveBench codingNot measured64.0%Only Inkling measured
LMArena WebDev12641414Inkling
AA Coding Index46.952.1Inkling
LiveCodeBench (Vals AI)Not measured85.5%Only Inkling measured
SWE-bench Verified (Vals AI)66.4%77.6%Inkling
Terminal-Bench 4 (Vals AI)Not measured0.5%Only Inkling measured
Vibe Code Bench (Vals AI)2.9%19.2%Inkling
Code migration (Vals AI)5.1%11.8%Inkling
ProgramBench (Vals AI)Not measured0.0%Only Inkling measured
IOI (Vals AI)Not measured14.9%Only Inkling measured
Terminal-Bench 2.1 (Vals AI)39.0%47.6%Inkling
Vibe Code Bench 1-100 (Vals AI)Not measured7.3%Only Inkling measured
SkillsBench (Vals AI)Not measured26.1%Only Inkling measured
CyberBench (Vals AI)Not measured66.8%Only Inkling measured
SciCode40.2%47.0%Inkling
Terminal-Bench Hard (Artificial Analysis run)33.3%Not measuredOnly Mistral Medium 3.5 measured
FrontierCodeNot measured14.0%Only Inkling measured
FrontierSWENot measured4.1%Only Inkling measured
WeirdMLNot measured32.3%Only Inkling measured
ALE-Bench764.0946.0Inkling
LMArena Text: coding14601466Inkling
LMArena Text: software and IT14581465Inkling
LMArena WebDev: React12541404Inkling
LMArena WebDev: HTML13081399Inkling
Neither model has a result on the other 15 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for Mistral Medium 3.5 and Inkling
BenchmarkMistral Medium 3.5InklingLeader
AA Intelligence Index14.225.0Inkling
Epoch Capabilities Index141.4148.4Inkling
Agentic workLike-for-likePublic boards, shown as published, kept out of the index05
Agentic work benchmarks for Mistral Medium 3.5 and Inkling
BenchmarkMistral Medium 3.5InklingLeader
AA Agentic Index7.022.5Inkling
Design Arena: agents building web appsNot measured1196Only Inkling measured
LiveBench researchNot measured59.9%Only Inkling measured
LiveBench browserNot measured16.0%Only Inkling measured
LiveBench long agenticNot measured14.1%Only Inkling measured
SREBench (Vals AI)Not measured0.0%Only Inkling measured
Finance Agent (Vals AI)32.1%46.6%Inkling
Tax Agent Bench (Vals AI)4.5%15.3%Inkling
Legal Research Bench (Vals AI)9.1%28.4%Inkling
Harvey's Legal Agent Benchmark (Vals AI)Not measured3.8%Only Inkling measured
Excel Modeling Benchmark (Vals AI)11.2%38.4%Inkling
τ²-Bench Telecom94.2%Not measuredOnly Mistral Medium 3.5 measured
APEX-AgentsNot measured33.8%Only Inkling measured
Neither model has a result on the other 28 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index06
Reasoning benchmarks for Mistral Medium 3.5 and Inkling
BenchmarkMistral Medium 3.5InklingLeader
GPQA Diamond34.9%87.1%Inkling
LiveBench reasoningNot measured78.3%Only Inkling measured
MMMU Pro (Vals AI)Not measured78.5%Only Inkling measured
GPQA Diamond (Artificial Analysis run)74.8%87.2%Inkling
Humanity's Last Exam (Artificial Analysis run)13.8%31.9%Inkling
GPQA Diamond (Epoch AI run)Not measured88.3%Only Inkling measured
ARC-AGINot measured79.5%Only Inkling measured
ARC-AGI-2Not measured36.5%Only Inkling measured
SimpleBenchNot measured50.0%Only Inkling measured
Chess puzzlesNot measured21.0%Only Inkling measured
LMArena Text: hard prompts14361451Inkling
LMArena Text: expert14321466Inkling
LMArena Text: hard prompts in English14451448Inkling
LMArena Vision: diagrams1254Not measuredOnly Mistral Medium 3.5 measured
LMArena Vision: homework1230Not measuredOnly Mistral Medium 3.5 measured
Kagi LLM Benchmark41.4%Not measuredOnly Mistral Medium 3.5 measured
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index12
Math benchmarks for Mistral Medium 3.5 and Inkling
BenchmarkMistral Medium 3.5InklingLeader
OTIS Mock AIMENot measured88.9%Only Inkling measured
FrontierMath, tiers 1 to 3Not measured33.3%Only Inkling measured
FrontierMath, tier 4Not measured4.9%Only Inkling measured
ProofBench9.0%0.0%Mistral Medium 3.5
LMArena Text: math14311479Inkling
LMArena Text: mathematical work14401460Inkling
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index09
Knowledge benchmarks for Mistral Medium 3.5 and Inkling
BenchmarkMistral Medium 3.5InklingLeader
MMLU Pro75.3%86.3%Inkling
LegalBench (Vals AI)Not measured83.0%Only Inkling measured
CaseLaw (Vals AI)44.2%Not measuredOnly Mistral Medium 3.5 measured
CorpFin (Vals AI)58.8%68.6%Inkling
TaxEval (Vals AI)68.0%75.3%Inkling
MortgageTax (Vals AI)28.9%64.0%Inkling
MedCode (Vals AI)33.8%41.2%Inkling
SimpleQA VerifiedNot measured40.3%Only Inkling measured
LMArena Text: science14281455Inkling
LMArena Text: medicine and healthcare14091447Inkling
LMArena Text: legal and government14371448Inkling
LMArena Text: business and finance14261438Inkling
Neither model has a result on the other 6 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index08
Web design benchmarks for Mistral Medium 3.5 and Inkling
BenchmarkMistral Medium 3.5InklingLeader
Design Arena: websites11421224Inkling
Design Arena: UI components10761198Inkling
Design Arena: game dev10791165Inkling
Design Arena: data viz11201156Inkling
Design Arena: 3D10601160Inkling
Design Arena: all code categories11211205Inkling
Design Arena: SVG9491108Inkling
Design Arena: ASCII art10621089Inkling
LiveBench designNot measured58.3%Only Inkling measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index220
General benchmarks for Mistral Medium 3.5 and Inkling
BenchmarkMistral Medium 3.5InklingLeader
Vals IndexNot measured29.0%Only Inkling measured
LiveBench data analysisNot measured72.8%Only Inkling measured
Public Benefits Bench (Vals AI)Not measured58.5%Only Inkling measured
SAGE (Vals AI)37.6%36.5%Mistral Medium 3.5
MedScribe (Vals AI)67.7%85.4%Inkling
Vals Multimodal Index34.8%49.4%Inkling
IFBench68.8%Not measuredOnly Mistral Medium 3.5 measured
Long context reasoning (AA-LCR)69.3%77.3%Inkling
DTBench75.5%87.5%Inkling
LMCA26.1%37.6%Inkling
Surface Evolver Bench26.9%Not measuredOnly Mistral Medium 3.5 measured
LMArena Text14211442Inkling
LMArena Text: instruction following14151425Inkling
LMArena Text: creative writing13741390Inkling
LMArena Vision1222Not measuredOnly Mistral Medium 3.5 measured
LMArena Text: English14331442Inkling
LMArena Text: non-English14041434Inkling
LMArena Text: Chinese14441493Inkling
LMArena Text: German14531445Mistral Medium 3.5
LMArena Text: JapaneseNot measured1429Only Inkling measured
LMArena Text: Korean13841403Inkling
LMArena Text: French14481455Inkling
LMArena Text: Spanish14111449Inkling
LMArena Text: Russian13951430Inkling
LMArena Text: Polish14301450Inkling
LMArena Text: multi-turn14231437Inkling
LMArena Text: longer queries14151435Inkling
LMArena Text: writing and language13841404Inkling
LMArena Text: entertainment and media13821394Inkling
LMArena Vision: English1240Not measuredOnly Mistral Medium 3.5 measured
LMArena Vision: Chinese1244Not measuredOnly Mistral Medium 3.5 measured
LMArena Vision: reading text1233Not measuredOnly Mistral Medium 3.5 measured
LMArena Vision: humor1216Not measuredOnly Mistral Medium 3.5 measured
LMArena Vision: creative writing1198Not measuredOnly Mistral Medium 3.5 measured
Neither model has a result on the other 12 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Mistral Medium 3.5 and Inkling
BenchmarkMistral Medium 3.5InklingLeader
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 3.5$0.0053Fits in one request
Inkling$0.0030Fits in one request

Inkling costs less

Repository review

50K input + 3K output tokens

Mistral Medium 3.5$0.098Fits in one request
Inkling$0.061Fits in one request

Inkling costs less

Agent loop

200K input + 10K output tokens

Mistral Medium 3.5$0.375Fits in one request
Inkling$0.235Fits in one request

Inkling 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 3.5 and Inkling
SpecificationMistral Medium 3.5Thinking Machines Inkling
MakerMistral AIThinking Machines
WeightsNo public weights listedOpen weights
ReleasedApril 30, 2026July 17, 2026
Context window262K524K
Input $/Mtok$1.50$0.975
Output $/Mtok$7.50$4.05
Coding index25.531.5
Independent measurements behind it36
Cost per solved task$6.02$0.76
SourceOpenRouter listingOpenRouter listing

Questions

Is Mistral Medium 3.5 better than Inkling for coding?

Pick Inkling for coding: it scores 31.5 on the Vibe Coding Index against 25.5 for Mistral Medium 3.5. Pick Mistral Medium 3.5 for work measured by ProofBench or SAGE (Vals AI), where it leads.

Which is cheaper, Mistral Medium 3.5 or Inkling?

Mistral Medium 3.5 costs $1.50 per million input tokens and $7.50 per million output tokens; Inkling costs $0.975 and $4.05. Per solved SWE-bench Verified task, Mistral Medium 3.5 costs $6.02 and Inkling $0.76.

Which has the bigger context window, Mistral Medium 3.5 or Inkling?

Inkling, with 524K tokens against 262K.

How many benchmarks is the Mistral Medium 3.5 vs Inkling comparison based on?

67 benchmarks have a result for both models as of October 22, 2026. Mistral Medium 3.5's coding index rests on 3 independent benchmarks and Inkling's on 6. Where only one model has a result, the page says so instead of naming a winner.

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<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/mistral-medium-3-5-vs-thinkingmachines-inkling">LLMBenchmark.ai, Mistral Medium 3.5 vs Inkling</a></p>