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GPT-4 vs Inkling Small

Inkling Small leads GPT-4 on the Artificial Analysis Intelligence Index, 25.7 to 6.7, and Inkling Small costs 50.0x less per output token ($1.20 vs $60.00 per million). Updated October 22, 2026; 32 benchmarks have a result for both.

Replace GPT-4 Replace Inkling Small
GPT-4OpenAI
Coding
No data
Overall
No data
Output $/M
$60.00
0
T Inkling SmallThinking Machines
Coding
27.3
Overall
43.6
Output $/M
$1.20
32
vs boards won of 32 shared

GPT-4 or Inkling Small: which to pick

Only Inkling Small has a coding score, 27.3 on the Vibe Coding Index; GPT-4 has none, so the two cannot be ranked on coding.

Compare them on price, context and the boards below.

Model AGPT-4OpenAINot benchmarkedNo coding benchmarkNo cost per solved taskModel BInkling SmallThinking Machines27.3/1004 independent benchmarks$0.16 per solved task
Shared results
32
GPT-4 only
13
Inkling Small only
52
Like-for-like categories
6 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-4 not benchmarked, Inkling Small 27.3 from 4 benchmarks.
Widest category
Reasoning, 44.3 points apart on average over 4 shared benchmarks.
Widest single gap
GPQA Diamond (Artificial Analysis run): GPT-4 34.9% against Inkling Small 89.5%, 54.6 points apart on a 0 to 100 scale.
Output price
GPT-4 $60.00 against Inkling Small $1.20 per million output tokens, 50.0x apart.
Context window
GPT-4 takes 8K 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-4BarsInkling SmallTies
Coding03
Intelligence02
Reasoning04
Math02
Knowledge04
General017
All shared boards032
CodingLike-for-likeSix of these boards feed the Vibe Coding Index03
Coding benchmarks for GPT-4 and Inkling Small
BenchmarkGPT-4Inkling SmallLeader
SWE-bench Verified22.4%Not measuredOnly GPT-4 measured
SWE-bench Lite39.7%Not measuredOnly GPT-4 measured
SWE-bench (full test set)12.5%Not measuredOnly GPT-4 measured
LMArena WebDevNot measured1409Only Inkling Small measured
AA Coding Index13.152.9Inkling Small
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
LMArena Text: coding12091450Inkling Small
LMArena Text: software and IT11951447Inkling 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 18 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for GPT-4 and Inkling Small
BenchmarkGPT-4Inkling SmallLeader
AA Intelligence Index6.725.7Inkling Small
Epoch Capabilities Index125.7150.3Inkling Small
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
Agentic work benchmarks for GPT-4 and Inkling Small
BenchmarkGPT-4Inkling 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
Neither model has a result on the other 35 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index04
Reasoning benchmarks for GPT-4 and Inkling Small
BenchmarkGPT-4Inkling SmallLeader
GPQA DiamondNot measured83.6%Only Inkling Small measured
GPQA Diamond (Artificial Analysis run)34.9%89.5%Inkling Small
Humanity's Last Exam (Artificial Analysis run)Not measured33.3%Only Inkling Small measured
GPQA Diamond (Epoch AI run)Not measured88.5%Only Inkling Small measured
ARC-AGINot measured84.0%Only Inkling Small measured
ARC-AGI-2Not measured40.1%Only Inkling Small measured
Mystery game puzzlesNot measured6.0%Only Inkling Small measured
BIG-Bench Hard75.1%Not measuredOnly GPT-4 measured
LMArena Text: hard prompts12001423Inkling Small
LMArena Text: expert11491441Inkling Small
LMArena Text: hard prompts in English12091429Inkling Small
LMArena Vision: diagramsNot measured1251Only Inkling Small measured
LMArena Vision: homeworkNot measured1257Only Inkling Small measured
Neither model has a result on the other 9 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index02
Math benchmarks for GPT-4 and Inkling Small
BenchmarkGPT-4Inkling SmallLeader
OTIS Mock AIMENot measured90.0%Only Inkling Small measured
FrontierMath, tiers 1 to 3Not measured46.3%Only Inkling Small measured
FrontierMath, tier 4Not measured17.1%Only Inkling Small measured
ProofBenchNot measured6.0%Only Inkling Small measured
GSM8K92.0%Not measuredOnly GPT-4 measured
LMArena Text: math12301459Inkling Small
LMArena Text: mathematical work12281441Inkling Small
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index04
Knowledge benchmarks for GPT-4 and Inkling Small
BenchmarkGPT-4Inkling 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
MMLU Pro (Artificial Analysis run)56.2%Not measuredOnly GPT-4 measured
SimpleQA VerifiedNot measured19.1%Only Inkling Small measured
MMLU86.4%Not measuredOnly GPT-4 measured
AI2 Reasoning Challenge96.3%Not measuredOnly GPT-4 measured
LMArena Text: science11771428Inkling Small
LMArena Text: medicine and healthcare11451413Inkling Small
LMArena Text: legal and government11911415Inkling Small
LMArena Text: business and finance11451413Inkling Small
Neither model has a result on the other 4 boards here
Web designNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Web design benchmarks for GPT-4 and Inkling Small
BenchmarkGPT-4Inkling SmallLeader
Neither model has a result on 9 boards here
GeneralLike-for-likePublic boards, shown as published, kept out of the index017
General benchmarks for GPT-4 and Inkling Small
BenchmarkGPT-4Inkling 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
IFBench33.2%Not measuredOnly GPT-4 measured
Long context reasoning (AA-LCR)Not measured75.7%Only Inkling Small measured
DTBench62.7%Not measuredOnly GPT-4 measured
LMCA17.1%Not measuredOnly GPT-4 measured
HellaSwag95.3%Not measuredOnly GPT-4 measured
WinoGrande87.5%Not measuredOnly GPT-4 measured
LMArena Text12061413Inkling Small
LMArena Text: instruction following12011399Inkling Small
LMArena Text: creative writing11911334Inkling Small
LMArena VisionNot measured1237Only Inkling Small measured
LMArena Text: English12201421Inkling Small
LMArena Text: non-English11941401Inkling Small
LMArena Text: Chinese11841464Inkling Small
LMArena Text: German11981408Inkling Small
LMArena Text: Japanese11371401Inkling Small
LMArena Text: Korean10871367Inkling Small
LMArena Text: French12201435Inkling Small
LMArena Text: Spanish11971422Inkling Small
LMArena Text: Russian11951394Inkling Small
LMArena Text: Polish12651428Inkling Small
LMArena Text: multi-turn12061416Inkling Small
LMArena Text: longer queries11901402Inkling Small
LMArena Text: writing and language12191357Inkling Small
LMArena Text: entertainment and media11841352Inkling Small
LMArena Vision: EnglishNot measured1243Only Inkling Small measured
LMArena Vision: ChineseNot measured1292Only Inkling Small measured
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 12 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-4 and Inkling Small
BenchmarkGPT-4Inkling 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-4$0.060Fits in one request
Inkling Small$0.0010Fits in one request

Inkling Small costs less

Repository review

50K input + 3K output tokens

GPT-4$1.68Exceeds the context window
Inkling Small$0.026Fits in one request

Inkling Small costs less

Agent loop

200K input + 10K output tokens

GPT-4$6.60Exceeds the context window
Inkling Small$0.102Fits in one request

Inkling Small 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-4 and Inkling Small
SpecificationOpenAI GPT-4Thinking Machines Inkling Small
MakerOpenAIThinking Machines
WeightsNo public weights listedOpen weights
ReleasedMay 28, 2023July 30, 2026
Context window8K524K
Input $/Mtok$30.00$0.45
Output $/Mtok$60.00$1.20
Coding indexNot benchmarked27.3
Independent measurements behind it04
Cost per solved taskNot computable$0.16
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-4 better than Inkling Small for coding?

Only Inkling Small has a coding score, 27.3 on the Vibe Coding Index; GPT-4 has none, so the two cannot be ranked on coding. Compare them on price, context and the boards below.

Which is cheaper, GPT-4 or Inkling Small?

GPT-4 costs $30.00 per million input tokens and $60.00 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-4 or Inkling Small?

Inkling Small, with 524K tokens against 8K.

How many benchmarks is the GPT-4 vs Inkling Small comparison based on?

32 benchmarks have a result for both models as of October 22, 2026. GPT-4'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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