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ModelCap

Inkling Small

Current board #86Arena #141Official publisher releaseOpen weightsFree tier7d #71 → #86

Thinking Machines·thinkingmachines/inkling-small

Inkling Small is ModelCap current-board rank #86 with Index 54.0 (Measured), from the ModelCap Index as of 22 Sept 2026, 02:49 UTC.

Inkling Small listed OpenRouter input price is $0.45 per 1M tokens and listed output price is $1.20 per 1M tokens, from OpenRouter listed prices as of 22 Sept 2026, 02:49 UTC.

Inkling Small has a published context limit of 1M tokens in the ModelCap catalogue as of 22 Sept 2026, 02:49 UTC.

Inkling Small has 3 published OpenRouter serving endpoints, from OpenRouter as of 22 Sept 2026, 02:49 UTC.

Inkling Small weight access is open weights, from ModelCap classification of published repository metadata as of 22 Sept 2026, 02:49 UTC.

Snapshot facts · download the public dataset · methodology

ModelCap Index · Current board
54.0#86
Measured · 68% support · score interval 49.4–58.6
Evidence as of 21 Sept 2026, 17:21 UTC
Market Gravity
44.0
Secondary market signal
Input
$0.45
per 1M tokens
Output
$1.20
per 1M tokens
Context
1M
tokens
Providers
3
endpoints
Gateway spend
latest · Vercel share

Providers

Uptime measured over the last 30 minutes
ProviderInputOutputContextQuantUptime
DeepInfrafp8Cheapest$0.45$1.20524Kfp8100.0%
BaseTenfp8$0.50$1.201Mfp8
Together$0.50$1.20524K

Hugging Face Inference Providers

Exact repository identity

Provider economics and telemetry published by the Hugging Face Router. These are operational signals, not benchmark results.

ProviderInputOutputContextTTFTThroughputFeatures
baseten
live
$0.50$1.201M215 ms190.3 tok/stools · structured
deepinfra
live
$0.45$1.20524K284 ms67.6 tok/stools · structured

Reasoning efforts

Best supported result can inform ModelCap

Published Max, X-High, High and other configurations for this model. These are sourced scores, not head-to-head essays.

EffortAgent scoreSource rankSampleSource
Default
Inkling Small
-9.16%
CI -10.5-7.8%
#41432K obs
13K sessions
LMArena Agent
Match 100%

Reported evaluation leads (7)

Not independent measurement

Structured rows reported in this exact model repository at the pinned revision below. They are the publisher talking about itself: never measured evidence, never a score input on their own. They remain quarantined until dataset revision, harness, configuration and identity pass ModelCap’s independent admission review.

Dataset / taskMetricValueRevisionProvenance
cais/hle
hle
31.6
Unpinned
not published
Reported
Quarantined
Idavidrein/gpqa
diamond
89.5
Unpinned
not published
Reported
Quarantined
MathArena/aime_2026
MathArena/aime_2026
95.5
Unpinned
not published
Reported
Quarantined
MathArena/hmmt_feb_2026
MathArena/hmmt_feb_2026
90.2
Unpinned
not published
Reported
Quarantined
MMMU/MMMU_Pro
mmmu_pro_standard_10_options
74
Unpinned
not published
Reported
Quarantined
ScaleAI/SWE-bench_Pro
SWE_Bench_Pro
55.9
Unpinned
not published
Reported
Quarantined
SWE-bench/SWE-bench_Verified
swe_bench_%_resolved
80.2
Unpinned
not published
Reported
Quarantined

ModelCap Index · Current board

Methodology
54.0
Measured · 4 public benchmark observations across 4 boards
Current board
#86
Public rank basis
Measured (measured)
Index support
67.6% · strong
Index interval
49.4–58.6
Rank posterior
Not available
Top 5 / Top 10 probability
Not available / Not available
Posterior as of
Snapshot timestamp unavailable
Evidence as of
21 Sept 2026, 17:21 UTC
Identity binding
Exact catalogue product · thinkingmachines/thinkingmachines/inkling-small · aggregates disclosed benchmark configurations · endpoint configuration not claimed · artifact metadata thinkingmachines/Inkling-Small@8cc5877b44d343f88b92086aa1fb72897950f06a (not the evaluation revision)
Index observations used
4
Qualified Index evidence point
54.0
Bayesian Evidence Score · measured evidence input only

BES normalizes admitted public benchmark evidence for measured Index rows. Its legacy score and observables prior do not define the public language rank.

Observed capability
54.0
Evidence status
confirmed · 90% mass
General preference
55.0
Coding
58.9
Agents & tools
23.2
Reasoning
48.0
Evidence breadth
100%
Evidence coverage
68%
Market and catalogue signals · secondary, never the language Index rank
Usage (OpenRouter popularity)
28.3
Liquidity (providers × uptime)
57.4
Open reach (HF downloads)
66.9
Surface (context / tools / modalities)
100.0
Freshness
81.6
  • · OpenRouter popularity #63
  • · 3 live providers
  • · HF 30d downloads 445417
  • · Catalogue: context 1048576, reasoning, tools, modalities Text/Image/Audio
  • · First seen 2026-07-30

These adoption and deployment observations remain context only. They do not change this model's ModelCap Index score or rank.

BES evidence selected · measured input only

The bounded 0–100 capability score blends each source’s competitive placement with its published achievement, then combines capability families. Evidence breadth adds a modest uncertainty adjustment; price and popularity are not part of benchmark-led rank.

Deployment readiness

Metadata index
91.6
strong · 94% metadata coverage
Not capability
Artifact reproducibility
85.0
Access & legal clarity
100.0
Deployability
94.0
Evaluation provenance
89.4

Missing: artifactReproducibility.base-lineage, evaluationProvenance.evaluation-dataset-revisions.

A metadata completeness and deployability index—not a safety certification, quality grade, or production-readiness claim.

Market activity

Venue coverage
Market Gravity
44.0
OpenRouter weekly popularity
#63 of 322

Market Gravity uses OpenRouter’s full-catalogue popularity order. Sparse Vercel top-ten observations appear only when published and do not affect the score.

Arena preference

Status
Ranked
Source
LMArena
Official rank
#141 of 402
Rating
1404.6
95% confidence interval
1399–1410
Votes
19K
Source published at
13 Sept 2026, 00:00 UTC
Category
overall
Identity match confidence
100%

Market Gravity breakdown

Usage55%
28.3

OpenRouter weekly popularity across the full model catalogue.

Liquidity25%
57.4

Independent providers versus the model's open or closed cohort, weighted by uptime.

Open reach15%
66.9

Hugging Face 30-day downloads for open models; neutral for closed models.

Freshness5%
81.6

Time since first public availability, on a six-month half-life.

Specification

Context window
1M tokens
Max output
262K tokens
Inputs
Text, Image, Audio
Outputs
Text
Tokenizer
Other
Cached input tokens
$0.10 / 1M
First seen on OpenRouter
30 Jul 2026

Capabilities

  • Supported: Reasoning
  • Supported: Tool use
  • Not supported: Structured output
  • Not supported: Response format
  • Not supported: Moderated

Weights & access

Open weights. Downloadable weights are published under an OSI or free-culture license in the current repository metadata. This describes weight availability, not whether the full training stack qualifies as Open Source AI.

Access
Open weights
Licence
apache-2.0
Pinned revision
8cc5877b44d3
Parameters
266.0B
Architecture
InklingForConditionalGeneration
Model type
inkling_mm_model
Hugging Face downloads (30d)
445K
Downloads (all time)
612K
Likes
414
Repository updated
31 Jul 2026, 00:39 UTC

Compare Inkling Small with

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Benchmark leaderboards featuring Inkling Small

All leaderboards
Public benchmark boards on which Inkling Small has a published result
LeaderboardScoreSource rankConfigurationPublished
Arena coding leaderboardArena (LMArena)14741466–1483#106 of 397Default13 Sept 2026
LMArena Agent leaderboardLMArena-9.2%-10.5%–-7.8%#41 of 46Default15 Sept 2026
ARC-AGI-2 leaderboardARC Prize Foundation40.1%#80 of 214X-High21 Sept 2026
Humanity's Last Exam (Artificial Analysis run)Artificial Analysis33.3%#102 of 615hle:may-2025:text-only-2158:no-tools:pass-at-1:source-model="Inkling Small":reasoning=true5 Sept 2026

Alternatives to Inkling Small, by the numbers

Ranked neighbours

Models within 3 places of #86 on the ModelCap Index.

Cheaper at a similar or higher Index

Index score within 3 points of, or above, this model's, with a lower listed blended price (3:1 input:output).

Other ranked Thinking Machines models

The same publisher's other current models with a public Index position.

  • Inkling#44 · Index 66.2 · $4.05/1M out

Inkling Small: common questions

How does Inkling Small rank among AI models?

Inkling Small holds ModelCap Index position #86 of 248 ranked language models as of 22 September 2026, with an Index score of 54.0 (interval 49.4–58.6); evidence: measured. The Index combines public benchmark boards with published uncertainty; the methodology page explains the weighting.

How much does Inkling Small cost per 1M tokens?

Inkling Small is listed at $0.45 per 1M input tokens and $1.20 per 1M output tokens as of 22 September 2026 across 3 providers. Prices come from the OpenRouter catalogue and re-observe on every refresh; at least one provider lists a free tier. For 1,000 requests using 2,000 input and 500 output tokens each, the listed rates imply $1.50 total (2M input + 0.5M output). This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the chosen endpoint's rate and limits before budgeting.

What is the context window of Inkling Small?

Inkling Small has a published context window of 1M tokens (1,048,576) and a maximum output of 262K tokens. Individual providers can serve less than the published maximum; the providers table lists each endpoint's own limit.

Is Inkling Small open-weight?

Open weights (apache-2.0). Downloadable weights are published under an OSI or free-culture license in the current repository metadata. This describes weight availability, not whether the full training stack qualifies as Open Source AI. The repository is thinkingmachines/Inkling-Small on Hugging Face.

Which API providers serve Inkling Small?

3 providers serve Inkling Small through OpenRouter as of 22 September 2026: DeepInfra, BaseTen and Together. Each provider's price, context limit, quantization and measured uptime are in the providers table above.

Which benchmarks has Inkling Small been evaluated on?

Inkling Small has published results on 4 public boards tracked by ModelCap as of 22 September 2026: Arena coding 1474 (#106 of 397), LMArena Agent -9.2% (#41 of 46), ARC-AGI-2 40.1% (#80 of 214) and AA Humanity's Last Exam 33.3% (#102 of 615). Each board page ranks every tracked model on that benchmark; the ModelCap Index combines them with published uncertainty.

How does Inkling Small compare with MiniMax M1 80k?

Inkling Small ranks #86 (Index 54.0) and MiniMax M1 80k ranks #85 (Index 54.1) on the ModelCap Index as of 22 September 2026. The head-to-head page lines up their benchmarks, listed prices, context windows and provider counts side by side.

When was Inkling Small released?

Inkling Small first appeared in the catalogue on 30 Jul 2026. It is the current version in its family. Rank and price movements since then are recorded on the site's changes feed.