Inkling Small
by Thinking Machines · 276B total / 12B active parameters
Today's price · per 1M tokens
Input
$0.300
per 1M tokens
Output
$1.20
per 1M tokens
Blended
$0.525
blended $/1M — 3:1 weighted input:output
Cached input
$0.060
20% of input — prompt caching
How this price is scoped: Tinker Serverless Inference (Beta) list price for the 256K-context nvfp4 sampling endpoint. OpenRouter lists this model's input at $0.50/1M — 67% over the vendor's own published rate — so the first-party figure is the one published here.
Price receipt
We read Thinking Machines's own pricing page on and found Inkling-Small listed with a price on the same row — that read is where the number above comes from. We keep the page text we read; its content hash is 1e34d6686b.
Overview
The lighter Inkling: a 276B-total / 12B-active MoE that matches its larger sibling on many benchmarks at a quarter of the size, with the same native text/image/audio reasoning and variable thinking effort. Open weights on Hugging Face, sold through Tinker serverless inference at $0.30/$1.20 per 1M tokens.
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Capabilities
struck through = not supportedBenchmark performance
accuracy % · higher is betterEvery per-benchmark score we hold for this model is reported by its own vendor, so none is counted toward an accuracy average or any ranking. The percentile above is its standing across the independent composites below.
- AA Intelligence Index: 26.1 (Artificial Analysis composite across reasoning, knowledge and coding evals)
- AA-Omniscience Index: -8.9 (−100–100)
- LMSYS Chatbot Arena: 1404.6 ELO (Human preference)
- Ranks #100 of 181 comparably-measured models by percentile score, across 3 independent measurements
- Ranks #38 of 181 comparably-tested models by normalized performance per dollar
77.5 tokens/sec output
Source: Artificial Analysis, LMSYS Chatbot Arena (UC Berkeley), Thinking Machines launch post (Introducing Inkling) · updated · See full rankings →
Specifications
- Provider
- Thinking Machines
- Context window
- 262K tokens
- Modality
- text, image, audio
- Parameters
- 276B total / 12B active
- Open source
- Yes — open weights available
- Released
- Status
- Current
- Last updated
- Tags
Availability verified: — listed on Thinking Machines's own page