Thinking MachinesReleased Nov 5, 2026
NewProprietary

Inkling 2 Small

Strongest in Abstract Reasoning (#14 of 209) and Computer Use (#20 of 180); weakest in Academic Reasoning (#60 of 211). Reliability is estimated, because no results are published yet.

Composite IQ ?
126
#27 of 180 ranked models · ahead of 85%
US (Other)'s top-ranked model
Effective cost
$1.25/1M
$0.30 in · $1 out
Speed
Not measured
No speed data yet
Context
Unverified
Not in publisher docs
Evidence
6of 7 dims
12 of 39 benchmarks

IQ profile

Seven dimensions, averaged equally into Composite IQ
Compare shape with
100 avg human130160● Abstract123#14● Math128#37● Academic128#60● Coding135#34● Computer Use128#20● Reliability112#96 · est.● Knowledge Work128#23
MeasuredEstimated95% range
#1 in dimensionTop-10 median

IQ dimensions

Ranks are among models scored in each dimension. Ranges are model-based estimates, not calibrated confidence intervals.

DimensionIQPosition · 70–160RankEvidencevs Top 10
123measured
#14 / 209
2/5
-9
128measured
#37 / 180
1/5
-19
128measured
#60 / 211
1/6
-7
135measured
#34 / 181
2/6
-15
128measured
#20 / 180
3/5
-16.5
112estimated
#96 / 181
0/6
-22.5
128measured
#23 / 180
3/6
-4
Inkling 2 Small95% range (model-based, uncalibrated)Top-10 median#1 in dimension100 = average human

Benchmark results

12 of 39 Composite IQ benchmarks have a published result for Inkling 2 Small. Benchmarks without a result stay listed so gaps are visible.

Abstract Reasoning IQ 123 · measuredBest: #14 of 71 on ARC-AGI-12/5
BenchmarkScorePercentileRankLeader · source
ARC-AGI-1
Full source leaderboard reconciliation · Nov 13
96.5%
#14 / 71
Leader fable-5 · 98.5%
Full source leaderboard reconciliation · Nov 13
ARC-AGI-2
Full source leaderboard reconciliation · Nov 13
81.7%
#17 / 71
Leader gpt-6-astra · 95.0%
Full source leaderboard reconciliation · Nov 13
Not yet reported
ARC-AGI-3Chess PuzzlesMystery Game Puzzles
Mathematical Reasoning IQ 128 · measuredBest: #17 of 66 on MathArena1/5
BenchmarkScorePercentileRankLeader · source
MathArena
Full source leaderboard reconciliation · Nov 13
42.3%
#17 / 66
Leader gpt-6.1-sol · 80.6%
Full source leaderboard reconciliation · Nov 13
Not yet reported
FrontierMath Tier 4FrontierMath Tier 1-3ProofBench 1.1AIME
Academic Reasoning IQ 128 · measuredBest: #19 of 90 on MMMU-Pro1/6
BenchmarkScorePercentileRankLeader · source
MMMU-Pro
Artificial Analysis v5.0.1 · Nov 13
81.6%
#19 / 90
Leader fable-5.1 · 90.6%
Artificial Analysis v5.0.1 · Nov 13
Not yet reported
Humanity's Last ExamGPQA DiamondCritPtSciCodeMMLU-Pro
Programmatic Reasoning IQ 135 · measuredBest: #40 of 109 on Terminal-Bench 4.02/6
BenchmarkScorePercentileRankLeader · source
Terminal-Bench 4.0
Artificial Analysis v5.0.1 · Nov 13
13.1%
#40 / 109
Leader Kimi K3.1 Pro · 67.2%
Artificial Analysis v5.0.1 · Nov 13
ProgramBench
Full source leaderboard reconciliation · Nov 6
12.0%
#27 / 63
Leader opus-5.5 · 65.0%
Full source leaderboard reconciliation · Nov 6
Not yet reported
LiveCodeBenchIOI V2SWE-rebenchMirrorCode
Computer Use IQ 128 · measuredBest: #5 of 35 on MCP Atlas3/5
BenchmarkScorePercentileRankLeader · source
MCP Atlas
Scale Labs MCP Atlas · Nov 10
85.4%
#5 / 35
Leader Gemini 4 Argon · 90.7%
Scale Labs MCP Atlas · Nov 10
BrowseComp
Full source leaderboard reconciliation · Nov 9
90.2%
#7 / 45
Leader Kimi K3.1 Pro · 92.1%
Full source leaderboard reconciliation · Nov 9
Arena.ai Agent Arena
Arena.ai Agent Arena · Nov 13
2.5
#21 / 72
Leader fable-5.2 · 30.4
Arena.ai Agent Arena · Nov 13
Not yet reported
OSWorld-VerifiedAgents' Last Exam
Reliability IQ 112 · estimatedNo published results0/6
No published results yet for Reliability. The 112 shown is estimated from Inkling 2 Small's other dimensions and will be replaced as results come in. How estimates work
SimpleQA VerifiedaaOmniscienceBullshitBench v2IFBenchAA Long Context Reasoning v1.1FACTS Grounding
Knowledge Work IQ 128 · measuredBest: #15 of 111 on GDP.pdf3/6
BenchmarkScorePercentileRankLeader · source
GDP.pdf
Artificial Analysis v5.0.1 · Nov 13
25.2%
#15 / 111
Leader Muse Wonder Full · 32.6%
Artificial Analysis v5.0.1 · Nov 13
AA-Briefcase v1.1 Elo
Artificial Analysis v5.0.1 · Nov 13
1,527
#21 / 116
Leader sonnet-5.5 · 1,816
Artificial Analysis v5.0.1 · Nov 13
AutomationBench-AA
Artificial Analysis v5.0.1 · Nov 13
45.6%
#48 / 112
Leader Gemini 4 Carbon · 77.8%
Artificial Analysis v5.0.1 · Nov 13
Not yet reported
GDPval-AA v2.1AA-AnalystAgentEnterpriseOps-Gym-AA

Release & availability

Facts from the publisher's announcement and documentation.

Released
Developer
Thinking Machines
Access
Available now for sampling, fine-tuning and playground use through Tinker as thinkingmachines/Inkling-2-Small. Weights are closed at launch.
Weights
ProprietaryHosted access only
Inputs
textimage
Context
Not publishedThe model card says up to 1 million tokens; the current Tinker catalog lists 64K and 256K deployment variants. The available input limit depends on the selected Tinker variant.
API price
$0.30 in · $1 outper 1M tokens · full pricing

What Thinking Machines says

  • Second-generation mixture-of-experts model with 594 billion total parameters and 17 billion active parameters.
  • Accepts text and image inputs, generates text, and supports variable reasoning effort.
  • Current Tinker sampling prices are $0.30 per million prefill tokens and $1.00 per million output tokens for the listed variants.

Limitations

  • The launch release keeps weights closed; an Apache 2.0 weight release is planned after external safety testing, but has not occurred.
  • The 1 million-token model-card capability exceeds the currently listed 64K and 256K Tinker variants; no single 1 million-token hosted endpoint is verified.
  • Publisher evaluation scores use their stated model settings and harnesses; they are not imported as independent AI IQ benchmark observations without exact source mapping.

Publisher statements, not AI IQ measurements.

About this score

How much of Inkling 2 Small's IQ is measured, and how the rest is estimated.

12/ 39benchmark results
6/ 7dimensions measured
1estimated
2/5Abstract
1/5Math
1/6Academic
2/6Coding
3/5Computer Use
0/6Reliability
3/6Knowledge Work
Bar height = share of benchmarks with resultsEstimatedNo score
Measured results are shown as published

Every score in the benchmark tables comes from its source unchanged. Composite IQ averages all seven dimensions equally.

Estimates fill the gaps

Reliability has no published results yet, so its IQ is estimated from Inkling 2 Small's other dimensions.

A missing result is not a zero

Benchmark versions and evaluation harnesses can differ between sources, so small gaps between models may not be meaningful.

Read the scoring methodology →

Compare Inkling 2 Small

Side-by-side pages for the models it is most often weighed against.

Inkling 2 SmallComparison model
Browse all comparisons →

Frequently asked questions

Quick answers about Inkling 2 Small, drawn from the same data as the rest of this page.

How AI IQ scores models →Get this data from the API →
What is the IQ of Inkling 2 Small?
Inkling 2 Small has an estimated IQ of 126, which ranks #27 out of 180 public models on the AI IQ leaderboard. The score combines seven equally weighted reasoning dimensions using measured benchmark results and conservative estimates for missing coverage.
What is Inkling 2 Small best at?
Among the dimensions with published benchmark results, Inkling 2 Small ranks highest in Abstract Reasoning (IQ 123, #14 of 209) and Computer Use (IQ 128, #20 of 180). Its lowest-ranked measured dimension is Academic Reasoning (IQ 128, #60 of 211).
What is the EQ of Inkling 2 Small?
Inkling 2 Small doesn't have an EQ score yet. EQ (emotional reasoning) is calculated from EQ-Bench 4 and AttuneBench, and neither has published a result for Inkling 2 Small. AI IQ doesn't estimate EQ from other benchmarks, so the score appears once one of those results is published.
Which benchmarks has Inkling 2 Small been tested on?
Inkling 2 Small has published results on 12 of the 39 benchmarks behind AI IQ's Composite IQ, including GDP.pdf, MCP Atlas, BrowseComp, AA-Briefcase v1.1 Elo and ARC-AGI-1.
How much does Inkling 2 Small cost?
Inkling 2 Small costs $0.30 per million input tokens and $1.00 per million output tokens. Adjusted for how many tokens it actually consumes on real tasks, its effective cost works out to $1.25 per million input-plus-output tokens.
Is Inkling 2 Small open source?
No — Inkling 2 Small is a proprietary model. Its weights are not publicly available, so it is used through hosted APIs and products.
Who developed Inkling 2 Small?
Inkling 2 Small was developed by Thinking Machines, based in the United States.
When was Inkling 2 Small released?
Inkling 2 Small was publicly released on November 5, 2026.
How large is the context window of Inkling 2 Small?
AI IQ hasn't verified an input context limit for Inkling 2 Small from its developer's documentation, so none is listed rather than guessing.
How fast is Inkling 2 Small?
AI IQ doesn't have independent speed measurements for Inkling 2 Small yet. Speed comes from independent tests of a model's hosted API, which aren't available for every model — especially new, restricted-access, or self-hosted ones.