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GPT-4 Turbo vs Inkling Small

Inkling Small leads GPT-4 Turbo on the Artificial Analysis Intelligence Index, 25.7 to 7.0, and Inkling Small costs 25.0x less per output token ($1.20 vs $30.00 per million). Updated October 22, 2026; 36 benchmarks have a result for both.

Replace GPT-4 Turbo Replace Inkling Small
GPT-4 TurboOpenAI
Coding
No data
Overall
No data
Output $/M
$30.00
0
T Inkling SmallThinking Machines
Coding
27.3
Overall
43.6
Output $/M
$1.20
36
vs boards won of 36 shared

GPT-4 Turbo or Inkling Small: which to pick

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

Compare them on price, context and the boards below.

Model AGPT-4 TurboOpenAINot benchmarkedNo coding benchmarkNo cost per solved taskModel BInkling SmallThinking Machines27.3/1004 independent benchmarks$0.16 per solved task
Shared results
36
GPT-4 Turbo only
6
Inkling Small only
48
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 Turbo not benchmarked, Inkling Small 27.3 from 4 benchmarks.
Widest category
Reasoning, 30.6 points apart on average over 4 shared benchmarks.
Widest single gap
LMArena Vision: Chinese: GPT-4 Turbo 1045 against Inkling Small 1292, 41.2 points apart on a 0 to 100 scale.
Output price
GPT-4 Turbo $30.00 against Inkling Small $1.20 per million output tokens, 25.0x apart.
Context window
GPT-4 Turbo 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-4 TurboBarsInkling SmallTies
Coding03
Intelligence02
Reasoning04
Math02
Knowledge05
General020
All shared boards036
CodingLike-for-likeSix of these boards feed the Vibe Coding Index03
Coding benchmarks for GPT-4 Turbo and Inkling Small
BenchmarkGPT-4 TurboInkling SmallLeader
LMArena WebDevNot measured1409Only Inkling Small measured
AA Coding Index21.552.9Inkling 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
LiveCodeBench (Artificial Analysis run)29.1%Not measuredOnly GPT-4 Turbo measured
SciCodeNot measured49.7%Only Inkling Small measured
LMArena Text: coding12681450Inkling Small
LMArena Text: software and IT12671447Inkling 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 20 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for GPT-4 Turbo and Inkling Small
BenchmarkGPT-4 TurboInkling SmallLeader
AA Intelligence Index7.025.7Inkling Small
Epoch Capabilities Index127.3150.3Inkling Small
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index6 boards, none shared
Agentic work benchmarks for GPT-4 Turbo and Inkling Small
BenchmarkGPT-4 TurboInkling 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 Turbo and Inkling Small
BenchmarkGPT-4 TurboInkling 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)3.1%33.3%Inkling Small
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
LMArena Text: hard prompts12511423Inkling Small
LMArena Text: expert12231441Inkling Small
LMArena Text: hard prompts in English12661429Inkling Small
LMArena Vision: diagramsNot measured1251Only Inkling Small measured
LMArena Vision: homeworkNot measured1257Only Inkling Small measured
Neither model has a result on the other 10 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index02
Math benchmarks for GPT-4 Turbo and Inkling Small
BenchmarkGPT-4 TurboInkling 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
LMArena Text: math12721459Inkling Small
LMArena Text: mathematical work12681441Inkling 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-4 Turbo and Inkling Small
BenchmarkGPT-4 TurboInkling SmallLeader
MMLU ProNot measured85.6%Only Inkling Small measured
LegalBench (Vals AI)80.5%83.0%Inkling Small
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
MedQA (Vals AI)82.0%Not measuredOnly GPT-4 Turbo measured
MedCode (Vals AI)Not measured37.9%Only Inkling Small measured
MMLU Pro (Artificial Analysis run)69.4%Not measuredOnly GPT-4 Turbo measured
SimpleQA VerifiedNot measured19.1%Only Inkling Small measured
MMLU81.3%Not measuredOnly GPT-4 Turbo measured
LMArena Text: science12561428Inkling Small
LMArena Text: medicine and healthcare12391413Inkling Small
LMArena Text: legal and government12651415Inkling Small
LMArena Text: business and finance12221413Inkling 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 Turbo and Inkling Small
BenchmarkGPT-4 TurboInkling 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-4 Turbo and Inkling Small
BenchmarkGPT-4 TurboInkling 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
DTBench61.6%Not measuredOnly GPT-4 Turbo measured
LMCA9.8%Not measuredOnly GPT-4 Turbo measured
LMArena Text12721413Inkling Small
LMArena Text: instruction following12491399Inkling Small
LMArena Text: creative writing12681334Inkling Small
LMArena Vision10901237Inkling Small
LMArena Text: English12911421Inkling Small
LMArena Text: non-English12451401Inkling Small
LMArena Text: Chinese12421464Inkling Small
LMArena Text: German12591408Inkling Small
LMArena Text: Japanese11941401Inkling Small
LMArena Text: Korean11871367Inkling Small
LMArena Text: French12761435Inkling Small
LMArena Text: Spanish12601422Inkling Small
LMArena Text: Russian12591394Inkling Small
LMArena Text: Polish13021428Inkling Small
LMArena Text: multi-turn12671416Inkling Small
LMArena Text: longer queries12541402Inkling Small
LMArena Text: writing and language12791357Inkling Small
LMArena Text: entertainment and media12581352Inkling Small
LMArena Vision: English10971243Inkling Small
LMArena Vision: Chinese10451292Inkling 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 15 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for GPT-4 Turbo and Inkling Small
BenchmarkGPT-4 TurboInkling 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 Turbo$0.025Fits in one request
Inkling Small$0.0010Fits in one request

Inkling Small costs less

Repository review

50K input + 3K output tokens

GPT-4 Turbo$0.590Fits in one request
Inkling Small$0.026Fits in one request

Inkling Small costs less

Agent loop

200K input + 10K output tokens

GPT-4 Turbo$2.30Exceeds 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 Turbo and Inkling Small
SpecificationOpenAI GPT-4 TurboThinking Machines Inkling Small
MakerOpenAIThinking Machines
WeightsNo public weights listedOpen weights
ReleasedApril 9, 2024July 30, 2026
Context window128K524K
Input $/Mtok$10.00$0.45
Output $/Mtok$30.00$1.20
Coding indexNot benchmarked27.3
Independent measurements behind it04
Cost per solved taskNot computable$0.16
SourceOpenRouter listingOpenRouter listing

Questions

Is GPT-4 Turbo better than Inkling Small for coding?

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

Which is cheaper, GPT-4 Turbo or Inkling Small?

GPT-4 Turbo costs $10.00 per million input tokens and $30.00 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 Turbo or Inkling Small?

Inkling Small, with 524K tokens against 128K.

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

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