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o3 Mini vs Inkling

Updated October 21, 2026. 52 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace o3 Mini Replace Inkling
o3 MiniOpenAI
Coding
52.1
Overall
12.5
Output $/M
$4.40
1
T InklingThinking Machines
Coding
49.7
Overall
25.0
Output $/M
$4.05
51
vs boards won of 52 shared

Decision reading

Pick o3 Mini for coding: it scores 52.1 on the Vibe Coding Index against 49.7 for Inkling.

Pick Inkling when output tokens cost 1.1x less, or when the context window is larger, 524K against 200K tokens.

Model Ao3 MiniOpenAI52.1/1002 independent benchmarksNo cost per solved taskModel BInklingThinking Machines49.7/1002 independent benchmarks$0.76 per solved task
Shared results
52
o3 Mini only
18
Inkling only
50
Like-for-like categories
6 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
o3 Mini 52.1 from 2 benchmarks, Inkling 49.7 from 2 benchmarks.
Widest category
General, 19.7 points apart on average over 20 shared benchmarks.
Widest single gap
ARC-AGI: o3 Mini 34.5% against Inkling 79.5%, 45.0 points apart on a 0 to 100 scale.
Output price
o3 Mini $4.40 against Inkling $4.05 per million output tokens, 1.1x apart.
Context window
o3 Mini takes 200K 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
Categoryo3 MiniBarsInklingTies
Coding14
Intelligence02
Reasoning011
Math05
Knowledge09
General020
All shared boards151
CodingLike-for-likeFour of these boards feed the Vibe Coding Index14
Coding benchmarks for o3 Mini and Inkling
Benchmarko3 MiniInklingLeader
Aider polyglot60.4%Not measuredOnly o3 Mini measured
SWE-bench Verified42.4%Not measuredOnly o3 Mini measured
SWE-bench Lite32.3%Not measuredOnly o3 Mini measured
LiveBench codingNot measured64.0%Only Inkling measured
LMArena WebDevNot measured1414Only Inkling measured
AA Coding IndexNot measured52.1Only Inkling measured
LiveCodeBench (Vals AI)71.5%85.5%Inkling
SWE-bench Verified (Vals AI)Not measured77.6%Only Inkling measured
Terminal-Bench 4 (Vals AI)Not measured0.5%Only Inkling measured
Vibe Code Bench (Vals AI)Not measured19.2%Only Inkling measured
Code migration (Vals AI)Not measured11.8%Only Inkling measured
ProgramBench (Vals AI)Not measured0.0%Only Inkling measured
IOI (Vals AI)Not measured14.9%Only Inkling measured
Terminal-Bench 2.1 (Vals AI)Not measured47.6%Only Inkling measured
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
LiveCodeBench (Artificial Analysis run)73.4%Not measuredOnly o3 Mini measured
SciCode42.8%47.0%Inkling
Terminal-Bench Hard (Artificial Analysis run)6.8%Not measuredOnly o3 Mini measured
FrontierCodeNot measured14.0%Only Inkling measured
FrontierSWENot measured4.1%Only Inkling measured
GSO-Bench1.3%Not measuredOnly o3 Mini measured
WeirdML43.7%32.3%o3 Mini
Cybench22.5%Not measuredOnly o3 Mini measured
ALE-BenchNot measured946.0Only Inkling measured
LMArena Text: coding13781466Inkling
LMArena Text: software and IT13641465Inkling
LMArena WebDev: ReactNot measured1404Only Inkling measured
LMArena WebDev: HTMLNot measured1399Only Inkling measured
Neither model has a result on the other 8 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for o3 Mini and Inkling
Benchmarko3 MiniInklingLeader
AA Intelligence Index12.525.0Inkling
Epoch Capabilities Index140.2148.4Inkling
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index13 boards, none shared
Agentic work benchmarks for o3 Mini and Inkling
Benchmarko3 MiniInklingLeader
AA Agentic IndexNot measured22.5Only Inkling measured
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)Not measured46.6%Only Inkling measured
Tax Agent Bench (Vals AI)Not measured15.3%Only Inkling measured
Legal Research Bench (Vals AI)Not measured28.4%Only Inkling measured
Harvey's Legal Agent Benchmark (Vals AI)Not measured3.8%Only Inkling measured
Excel Modeling Benchmark (Vals AI)Not measured38.4%Only Inkling measured
τ²-Bench Telecom31.3%Not measuredOnly o3 Mini measured
APEX-AgentsNot measured33.8%Only Inkling measured
Neither model has a result on the other 26 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index011
Reasoning benchmarks for o3 Mini and Inkling
Benchmarko3 MiniInklingLeader
GPQA Diamond75.5%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)77.3%87.2%Inkling
Humanity's Last Exam (Artificial Analysis run)12.0%31.9%Inkling
GPQA Diamond (Epoch AI run)77.0%88.3%Inkling
ARC-AGI34.5%79.5%Inkling
ARC-AGI-23.0%36.5%Inkling
SimpleBench22.8%50.0%Inkling
Chess puzzles15.0%21.0%Inkling
Mystery game puzzles7.0%Not measuredOnly o3 Mini measured
LMArena Text: hard prompts13651451Inkling
LMArena Text: expert13641466Inkling
LMArena Text: hard prompts in English13751448Inkling
Neither model has a result on the other 7 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index05
Math benchmarks for o3 Mini and Inkling
Benchmarko3 MiniInklingLeader
AIME86.5%Not measuredOnly o3 Mini measured
MATH 500 (Vals AI)91.8%Not measuredOnly o3 Mini measured
MGSM (Vals AI)91.3%Not measuredOnly o3 Mini measured
OTIS Mock AIME76.9%88.9%Inkling
FrontierMath, tiers 1 to 318.6%33.3%Inkling
FrontierMath, tier 40.0%4.9%Inkling
ProofBenchNot measured0.0%Only Inkling measured
MATH level 596.5%Not measuredOnly o3 Mini measured
LMArena Text: math13961479Inkling
LMArena Text: mathematical work13991460Inkling
Neither model has a result on the other 3 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index09
Knowledge benchmarks for o3 Mini and Inkling
Benchmarko3 MiniInklingLeader
MMLU Pro78.7%86.3%Inkling
LegalBench (Vals AI)71.5%83.0%Inkling
CorpFin (Vals AI)45.3%68.6%Inkling
TaxEval (Vals AI)69.4%75.3%Inkling
MortgageTax (Vals AI)Not measured64.0%Only Inkling measured
MedQA (Vals AI)94.8%Not measuredOnly o3 Mini measured
MedCode (Vals AI)Not measured41.2%Only Inkling measured
MMLU Pro (Artificial Analysis run)80.2%Not measuredOnly o3 Mini measured
SimpleQA Verified15.3%40.3%Inkling
LMArena Text: science13391455Inkling
LMArena Text: medicine and healthcare13301447Inkling
LMArena Text: legal and government13281448Inkling
LMArena Text: business and finance13131438Inkling
Neither model has a result on the other 4 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index9 boards, none shared
Web design benchmarks for o3 Mini and Inkling
Benchmarko3 MiniInklingLeader
Design Arena: websitesNot measured1224Only Inkling measured
Design Arena: UI componentsNot measured1200Only Inkling measured
Design Arena: game devNot measured1166Only Inkling measured
Design Arena: data vizNot measured1160Only Inkling measured
Design Arena: 3DNot measured1161Only Inkling measured
Design Arena: all code categoriesNot measured1206Only Inkling measured
Design Arena: SVGNot measured1109Only Inkling measured
Design Arena: ASCII artNot measured1089Only Inkling measured
LiveBench designNot measured58.3%Only Inkling measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index020
General benchmarks for o3 Mini and Inkling
Benchmarko3 MiniInklingLeader
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)Not measured36.5%Only Inkling measured
MedScribe (Vals AI)Not measured85.4%Only Inkling measured
Vals Multimodal IndexNot measured49.4%Only Inkling measured
IFBench67.1%Not measuredOnly o3 Mini measured
Long context reasoning (AA-LCR)43.0%77.3%Inkling
DTBench68.8%87.5%Inkling
LMCA19.0%37.6%Inkling
Fiction.LiveBench50.0%Not measuredOnly o3 Mini measured
Creative writing (Lech Mazur)61.7%Not measuredOnly o3 Mini measured
LMArena Text13371442Inkling
LMArena Text: instruction following13371425Inkling
LMArena Text: creative writing12861390Inkling
LMArena Text: English13511442Inkling
LMArena Text: non-English13191434Inkling
LMArena Text: Chinese13791493Inkling
LMArena Text: German13031445Inkling
LMArena Text: Japanese12861429Inkling
LMArena Text: Korean13131403Inkling
LMArena Text: French13341455Inkling
LMArena Text: Spanish13211449Inkling
LMArena Text: Russian13041430Inkling
LMArena Text: Polish12941450Inkling
LMArena Text: multi-turn13201437Inkling
LMArena Text: longer queries13431435Inkling
LMArena Text: writing and language13131404Inkling
LMArena Text: entertainment and media12831394Inkling
Neither model has a result on the other 17 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for o3 Mini and Inkling
Benchmarko3 MiniInklingLeader
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

o3 Mini$0.0033Fits in one request
Inkling$0.0030Fits in one request

Inkling costs less

Repository review

50K input + 3K output tokens

o3 Mini$0.068Fits in one request
Inkling$0.062Fits in one request

Inkling costs less

Agent loop

200K input + 10K output tokens

o3 Mini$0.264Exceeds the context window
Inkling$0.240Fits 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 o3 Mini and Inkling
SpecificationOpenAI o3 MiniThinking Machines Inkling
MakerOpenAIThinking Machines
WeightsNo public weights listedOpen weights
ReleasedJanuary 31, 2025July 17, 2026
Context window200K524K
Input $/Mtok$1.10$1.00
Output $/Mtok$4.40$4.05
Coding index52.149.7
Independent measurements behind it22
Cost per solved taskNot computable$0.76
SourceOpenRouter listingOpenRouter listing

Questions

Is o3 Mini better than Inkling for coding?

Pick o3 Mini for coding: it scores 52.1 on the Vibe Coding Index against 49.7 for Inkling. Pick Inkling when output tokens cost 1.1x less, or when the context window is larger, 524K against 200K tokens.

Which is cheaper, o3 Mini or Inkling?

o3 Mini costs $1.10 per million input tokens and $4.40 per million output tokens; Inkling costs $1.00 and $4.05. Cost per solved task is known for Inkling only.

Which has the bigger context window, o3 Mini or Inkling?

Inkling, with 524K tokens against 200K.

How many benchmarks is the o3 Mini vs Inkling comparison based on?

52 benchmarks have a result for both models as of October 21, 2026. o3 Mini's coding index rests on 2 independent benchmarks and Inkling's on 2. Where only one model has a result, the page says so instead of naming a winner.

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<iframe src="https://llmbenchmark.ai/embed/compare/o3-mini-vs-thinkingmachines-inkling" title="o3 Mini vs Inkling, LLMBenchmark.ai" width="100%" height="360" style="border:0;max-width:100%" loading="lazy"></iframe>
<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/o3-mini-vs-thinkingmachines-inkling">LLMBenchmark.ai, o3 Mini vs Inkling</a></p>