The Model Index
Models/Thinking Machines

Inkling-Small

Thinking MachinesReleased 30 Jul 2026OpenDate verified
CompareRun it yourself →Announcement
154143–165Index score#48 of 229 models
3/ 8Core tests taken3 of 6 areas · plus 7 anchor tests
−33Versus the frontier at releasebest then: Claude Opus 5
$0.45/ $1.2Price per million tokensinput / output, list price
524KContext windowtokens it reads at once

Where it sitson the frontier

Gemini 3 Pro reached this score 8 months earlier.

Test resultsby area · tick = best by any model

Reasoning & knowledgeevidence
GPQA Diamond
89%
Humanity's Last Exam
no result
Mathsevidence
FrontierMath T1-3
46%
Codingno evidence yet
SWE-bench Verified
no result
Terminal-Bench
no result
Agentsevidence
APEX-Agents
no result
Novel problemsevidence
ARC-AGI-2
40%
Long tasksno evidence yet
METR time horizon
no result

Independent results from the Epoch AI benchmarking hub, best reasoning setting. The core tests are shown here; anchor tests also inform the score and can be shown above.

What others sayrank on each leaderboard

The Model Indexindependent tests, our method#48of 219 · 154
Artificial Analysis Intelligence Indexoverall capability across ten evaluations#39of 207 · 26LMArena · Mathsmaths questions in chat#72of 373 · 1447Epoch Capabilities Indexoverall capability from many benchmarks#47of 239 · 150.2LMArena · Codingcoding questions in chat#104of 383 · 1474LMArena · Textoverall chat quality, judged by people#134of 388 · 1405LMArena · Visionunderstanding images#71of 149 · 1207LMArena · Creative writingcreative writing#196of 386 · 1310LMArena · WebDevbuilding web apps and front ends#73of 123 · 1408

Further left is better. Leaderboards measure different things: LMArena is people voting blind between two answers, the others are test scores. Click any row for the source.

Best attop three among current models

Not in the top three among current models on any category we track.

Where this model places in the top three of today's models, on category leaderboards and on our core tests.

Where to use itprices checked 1 Oct 2026

From the lab

TinkerAPI↗

API providers 1 · per million tokens, in / out

DDeepInfra$0.45 / $1.2 · fp8cheapest

Run it yourself

🤗Official weightsthinkingmachines/Inkling-Small↗

Provider prices come from OpenRouter's live listing; going direct to a provider can differ. Subscriptions are the lab's own apps.

Facts and sources

Released30 Jul 2026
Release entryInkling-Small
Scored asInkling-Small
Artificial Analysis index26
Output speed185 tokens/s

Thinking Machines releasesaround this one

InklingOpen
index 150
Inkling-SmallOpen
index 154