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GPT-4o-mini (2024-07-18) vs Inkling Small

GPT-4o-mini (2024-07-18) costs 2.0x less per output token than Inkling Small ($0.60 vs $1.20 per million). Updated October 22, 2026; 36 benchmarks have a result for both.

Replace GPT-4o-mini (2024-07-18) Replace Inkling Small
GPT-4o-mini (2024-07-18)OpenAI
Coding
No data
Overall
No data
Output $/M
$0.60
1
T Inkling SmallThinking Machines
Coding
27.3
Overall
43.6
Output $/M
$1.20
35
vs boards won of 36 shared

GPT-4o-mini (2024-07-18) or Inkling Small: which to pick

Only Inkling Small has a coding score, 27.3 on the Vibe Coding Index; GPT-4o-mini (2024-07-18) has none, so the two cannot be ranked on coding.

Pick GPT-4o-mini (2024-07-18) for output tokens 2.0x cheaper ($0.60 vs $1.20 per million) and work measured by Mystery game puzzles, where it leads.

Model AGPT-4o-mini (2024-07-18)OpenAINot benchmarkedNo coding benchmarkNo cost per solved taskModel BInkling SmallThinking Machines27.3/1004 independent benchmarks$0.16 per solved task
Shared results
36
GPT-4o-mini (2024-07-18) only
10
Inkling Small only
49
Like-for-like categories
5 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
GPT-4o-mini (2024-07-18) not benchmarked, Inkling Small 27.3 from 4 benchmarks.
Widest category
Math, 47.2 points apart on average over 4 shared benchmarks.
Widest single gap
OTIS Mock AIME: GPT-4o-mini (2024-07-18) 6.9% against Inkling Small 90.0%, 83.1 points apart on a 0 to 100 scale.
Output price
GPT-4o-mini (2024-07-18) $0.60 against Inkling Small $1.20 per million output tokens, 2.0x apart.
Context window
GPT-4o-mini (2024-07-18) takes 128K tokens, Inkling Small 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
CategoryGPT-4o-mini (2024-07-18)BarsInkling SmallTies
Coding02
Reasoning14
Math04
Knowledge05
General020
All shared boards135
CodingLike-for-likeSix of these boards feed the Vibe Coding Index02
Coding benchmarks for GPT-4o-mini (2024-07-18) and Inkling Small
BenchmarkGPT-4o-mini (2024-07-18)Inkling SmallLeader
Aider polyglot3.6%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena WebDevNot measured1409Only Inkling Small measured
AA Coding IndexNot measured52.9Only Inkling Small measured
LiveCodeBench (Vals AI)Not measured85.9%Only Inkling Small measured
SWE-bench Verified (Vals AI)Not measured82.2%Only Inkling Small measured
Terminal-Bench 4 (Vals AI)Not measured0.0%Only Inkling Small measured
Vibe Code Bench (Vals AI)Not measured19.1%Only Inkling Small measured
Code migration (Vals AI)Not measured13.7%Only Inkling Small measured
ProgramBench (Vals AI)Not measured0.5%Only Inkling Small measured
IOI (Vals AI)Not measured9.3%Only Inkling Small measured
Terminal-Bench 2.1 (Vals AI)Not measured55.1%Only Inkling Small measured
SkillsBench (Vals AI)Not measured33.6%Only Inkling Small measured
CyberBench (Vals AI)Not measured64.1%Only Inkling Small measured
SciCodeNot measured49.7%Only Inkling Small measured
WeirdML11.8%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: coding12901450Inkling Small
LMArena Text: software and IT12911447Inkling Small
LMArena WebDev: ReactNot measured1399Only Inkling Small measured
LMArena WebDev: HTMLNot measured1398Only Inkling Small measured
LMArena WebDev: from an imageNot measured1410Only Inkling Small measured
Neither model has a result on the other 23 boards here
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards, none shared
Intelligence benchmarks for GPT-4o-mini (2024-07-18) and Inkling Small
BenchmarkGPT-4o-mini (2024-07-18)Inkling SmallLeader
AA Intelligence IndexNot measured25.7Only Inkling Small measured
Epoch Capabilities IndexNot measured150.3Only Inkling Small measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Agentic work benchmarks for GPT-4o-mini (2024-07-18) and Inkling Small
BenchmarkGPT-4o-mini (2024-07-18)Inkling SmallLeader
AA Agentic IndexNot measured23.5Only Inkling Small measured
Finance Agent (Vals AI)Not measured41.3%Only Inkling Small measured
Tax Agent Bench (Vals AI)Not measured15.4%Only Inkling Small measured
Legal Research Bench (Vals AI)Not measured25.5%Only Inkling Small measured
Harvey's Legal Agent Benchmark (Vals AI)Not measured2.9%Only Inkling Small measured
Excel Modeling Benchmark (Vals AI)Not measured31.8%Only Inkling Small measured
BALROG17.4%Not measuredOnly GPT-4o-mini (2024-07-18) measured
MCP AtlasNot measured79.2%Only Inkling Small measured
Neither model has a result on the other 34 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index14
Reasoning benchmarks for GPT-4o-mini (2024-07-18) and Inkling Small
BenchmarkGPT-4o-mini (2024-07-18)Inkling SmallLeader
GPQA DiamondNot measured83.6%Only Inkling Small measured
GPQA Diamond (Artificial Analysis run)Not measured89.5%Only Inkling Small measured
Humanity's Last Exam (Artificial Analysis run)Not measured33.3%Only Inkling Small measured
GPQA Diamond (Epoch AI run)37.7%88.5%Inkling Small
ARC-AGINot measured84.0%Only Inkling Small measured
ARC-AGI-2Not measured40.1%Only Inkling Small measured
SimpleBench10.7%Not measuredOnly GPT-4o-mini (2024-07-18) measured
Chess puzzles3.0%Not measuredOnly GPT-4o-mini (2024-07-18) measured
Mystery game puzzles12.0%6.0%GPT-4o-mini (2024-07-18)
VPCT34.0%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: hard prompts12671423Inkling Small
LMArena Text: expert12341441Inkling Small
LMArena Text: hard prompts in English12781429Inkling Small
LMArena Vision: diagramsNot measured1251Only Inkling Small measured
LMArena Vision: homeworkNot measured1257Only Inkling Small measured
Neither model has a result on the other 8 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index04
Math benchmarks for GPT-4o-mini (2024-07-18) and Inkling Small
BenchmarkGPT-4o-mini (2024-07-18)Inkling SmallLeader
OTIS Mock AIME6.9%90.0%Inkling Small
FrontierMath, tiers 1 to 30.7%46.3%Inkling Small
FrontierMath, tier 4Not measured17.1%Only Inkling Small measured
ProofBenchNot measured6.0%Only Inkling Small measured
MATH level 552.6%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: math12671459Inkling Small
LMArena Text: mathematical work12711441Inkling Small
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index05
Knowledge benchmarks for GPT-4o-mini (2024-07-18) and Inkling Small
BenchmarkGPT-4o-mini (2024-07-18)Inkling SmallLeader
MMLU ProNot measured85.6%Only Inkling Small measured
LegalBench (Vals AI)Not measured83.0%Only Inkling Small measured
CorpFin (Vals AI)Not measured69.6%Only Inkling Small measured
TaxEval (Vals AI)Not measured75.5%Only Inkling Small measured
MortgageTax (Vals AI)Not measured62.3%Only Inkling Small measured
MedCode (Vals AI)Not measured37.9%Only Inkling Small measured
SimpleQA Verified8.3%19.1%Inkling Small
MMLU76.7%Not measuredOnly GPT-4o-mini (2024-07-18) measured
GeoBench64.0%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text: science12861428Inkling Small
LMArena Text: medicine and healthcare12821413Inkling Small
LMArena Text: legal and government13051415Inkling Small
LMArena Text: business and finance12651413Inkling Small
Neither model has a result on the other 7 boards here
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Web design benchmarks for GPT-4o-mini (2024-07-18) and Inkling Small
BenchmarkGPT-4o-mini (2024-07-18)Inkling SmallLeader
Neither model has a result on 9 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index020
General benchmarks for GPT-4o-mini (2024-07-18) and Inkling Small
BenchmarkGPT-4o-mini (2024-07-18)Inkling SmallLeader
Vals IndexNot measured27.6%Only Inkling Small measured
Public Benefits Bench (Vals AI)Not measured59.4%Only Inkling Small measured
SAGE (Vals AI)Not measured32.7%Only Inkling Small measured
MedScribe (Vals AI)Not measured84.1%Only Inkling Small measured
Vals Multimodal IndexNot measured50.0%Only Inkling Small measured
Long context reasoning (AA-LCR)Not measured75.7%Only Inkling Small measured
Creative writing (Lech Mazur)67.2%Not measuredOnly GPT-4o-mini (2024-07-18) measured
LMArena Text12861413Inkling Small
LMArena Text: instruction following12581399Inkling Small
LMArena Text: creative writing12681334Inkling Small
LMArena Vision10661237Inkling Small
LMArena Text: English13011421Inkling Small
LMArena Text: non-English12661401Inkling Small
LMArena Text: Chinese12651464Inkling Small
LMArena Text: German12721408Inkling Small
LMArena Text: Japanese12161401Inkling Small
LMArena Text: Korean11951367Inkling Small
LMArena Text: French12971435Inkling Small
LMArena Text: Spanish12761422Inkling Small
LMArena Text: Russian12751394Inkling Small
LMArena Text: Polish12441428Inkling Small
LMArena Text: multi-turn12851416Inkling Small
LMArena Text: longer queries12891402Inkling Small
LMArena Text: writing and language12821357Inkling Small
LMArena Text: entertainment and media12531352Inkling Small
LMArena Vision: English10721243Inkling Small
LMArena Vision: Chinese10331292Inkling Small
LMArena Vision: reading textNot measured1243Only Inkling Small measured
LMArena Vision: humorNot measured1207Only Inkling Small measured
LMArena Vision: creative writingNot measured1205Only Inkling Small measured
Neither model has a result on the other 18 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-4o-mini (2024-07-18) and Inkling Small
BenchmarkGPT-4o-mini (2024-07-18)Inkling SmallLeader
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

GPT-4o-mini (2024-07-18)$0.0004Fits in one request
Inkling Small$0.0010Fits in one request

GPT-4o-mini (2024-07-18) costs less

Repository review

50K input + 3K output tokens

GPT-4o-mini (2024-07-18)$0.0093Fits in one request
Inkling Small$0.026Fits in one request

GPT-4o-mini (2024-07-18) costs less

Agent loop

200K input + 10K output tokens

GPT-4o-mini (2024-07-18)$0.036Exceeds the context window
Inkling Small$0.102Fits in one request

GPT-4o-mini (2024-07-18) 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 GPT-4o-mini (2024-07-18) and Inkling Small
SpecificationOpenAI GPT-4o-mini (2024-07-18)Thinking Machines Inkling Small
MakerOpenAIThinking Machines
WeightsNo public weights listedOpen weights
ReleasedJuly 18, 2024July 30, 2026
Context window128K524K
Input $/Mtok$0.15$0.45
Output $/Mtok$0.60$1.20
Coding indexNot benchmarked27.3
Independent measurements behind it04
Cost per solved taskNot computable$0.16
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-4o-mini (2024-07-18) better than Inkling Small for coding?

Only Inkling Small has a coding score, 27.3 on the Vibe Coding Index; GPT-4o-mini (2024-07-18) has none, so the two cannot be ranked on coding. Pick GPT-4o-mini (2024-07-18) for output tokens 2.0x cheaper ($0.60 vs $1.20 per million) and work measured by Mystery game puzzles, where it leads.

Which is cheaper, GPT-4o-mini (2024-07-18) or Inkling Small?

GPT-4o-mini (2024-07-18) costs $0.15 per million input tokens and $0.60 per million output tokens; Inkling Small costs $0.45 and $1.20. Cost per solved task is known for Inkling Small only.

Which has the bigger context window, GPT-4o-mini (2024-07-18) or Inkling Small?

Inkling Small, with 524K tokens against 128K.

How many benchmarks is the GPT-4o-mini (2024-07-18) vs Inkling Small comparison based on?

36 benchmarks have a result for both models as of October 22, 2026. GPT-4o-mini (2024-07-18)'s coding index rests on 0 independent benchmarks and Inkling Small's on 4. Where only one model has a result, the page says so instead of naming a winner.

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