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ModelCap

Inkling Small

Arena #158Official publisher releaseOpen weights7d #107 → #109

Thinking Machines·#109 of 352 on the current board·cheaper than #90 Qwen3.5-122B-A10B

Inkling Small is a language model from Thinking Machines. It ranks #109 of 352 on ModelCap's current board, with an Index score of 53.5, measured on 4 public benchmarks. Its score range of 48.9–58.1 spans positions #90–#136. It is listed at $0.45 per million input tokens and $1.20 per million output tokens from one provider. It reads up to 524K tokens of context, and its weights are openly downloadable.

Figures as of 6 Nov 2026, 13:52 UTC · download the public dataset · methodology

ModelCap Index · Current board
53.5#109
Measured on 4 public benchmarks · range 48.9–58.1
Evidence as of 4 Nov 2026, 23:07 UTC
Market Gravity
26.6Increased by 0.5
Secondary market signal
Input
$0.45
per 1M tokens
Output
$1.20
per 1M tokens
Context
524K
tokens
Providers
1
endpoint

Providers

Uptime measured over the last 30 minutes
ProviderInputOutputContextQuantUptime
DeepInfrafp8$0.45$1.20524Kfp8—

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
deepinfra
live
$0.45$1.20524K273 ms73.2 tok/stools

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
-17.04%
CI -18.9–-15.2%
#57565K obs
15K sessions
LMArena Agent
Match 100%

Reported evaluation leads (8)

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
harborframework/terminal-bench-2.1
terminalbench_2_1
—64.7
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
53.5
Measured on 4 public benchmarks
Current board
#109 of 352
Score range
48.9–58.1
Rank range
#90–#136
Evidence as of
4 Nov 2026, 23:07 UTC
Benchmarks used
ARC-AGI-2 Verified, Arena Coding, Arena Overall, LMArena Agent
Technical details
Public rank basis
Measured (measured)
Evidence label
Measured · 4 public benchmark observations across 4 boards
Index support
67.7% · strong
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
53.5
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
53.5
Evidence status
confirmed · 90% mass
General preference
54.8
Coding
58.9
Agents & tools
10.2
Reasoning
38.6
Evidence breadth
100%
Evidence coverage
68%
Market and catalogue signals · secondary, never the language Index rank
Usage (OpenRouter popularity)
10.3
Liquidity (providers × uptime)
24.3
Open reach (HF downloads)
76.4
Surface (context / tools / modalities)
95.3
Freshness
68.7
  • · OpenRouter popularity #186
  • · 1 live provider
  • · HF 30d downloads 1288366
  • · Catalogue: context 524288, 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
85.6
strong · 94% metadata coverage
Not capability
Artifact reproducibility
85.0
Access & legal clarity
100.0
Deployability
73.9
Evaluation provenance
89.4

Not yet published: the base model it derives from, pinned evaluation dataset versions.

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

Market activity

Venue coverage
Market Gravity
26.6
OpenRouter weekly popularity
#186 of 339

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
#158 of 419
Rating
1405.5
95% confidence interval
1401–1410
Votes
37K
Source published at
28 Oct 2026, 00:00 UTC
Category
overall
Identity match confidence
100%

Market Gravity breakdown

Usage55%
10.3

OpenRouter weekly popularity across the full model catalogue.

Liquidity25%
24.3

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

Open reach15%
76.4

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

Freshness5%
68.7

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

Specification

Model ID
thinkingmachines/inkling-small
Context window
524K tokens
Declared output cap
262K tokens

OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified. OpenRouter metadata

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)
1.3M
Downloads (all time)
2.3M
Likes
443
Repository updated
31 Jul 2026, 00:39 UTC

Compare Inkling Small with

Pick any model

Benchmark leaderboards featuring Inkling Small

All leaderboards
Public benchmark boards on which Inkling Small has a published result
LeaderboardScoreSource rankConfigurationPublished
Arena text leaderboardArena (LMArena)14061401–1410#158 of 419Not reported28 Oct 2026
Arena coding leaderboardArena (LMArena)14721465–1479#124 of 414Default28 Oct 2026
LMArena Agent leaderboardLMArena-17.0%-18.9%–-15.2%#57 of 58Default4 Nov 2026
ARC-AGI-2 leaderboardARC Prize Foundation40.1%#119 of 280X-High4 Nov 2026
Artificial Analysis Intelligence IndexArtificial Analysis12.9#81 of 98Reasoning28 Oct 2026

Alternatives to Inkling Small, by the numbers

Ranked neighbours

Models within 3 places of #109 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#59 · Index 66.5 · $4.05/1M out

Inkling Small: common questions

How does Inkling Small rank among AI models?

Inkling Small holds ModelCap Index position #109 of 352 ranked language models as of 6 November 2026, with an Index score of 53.5 (interval 48.9–58.1); 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 6 November 2026. Prices come from the OpenRouter catalogue and re-observe on every refresh. 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 524K tokens (524,288). The snapshot lists a 262,144 token catalogue-declared route output cap. OpenRouter catalogue or provider-endpoint declaration. Limits can vary by provider and prompt length; a model-wide maximum has not been independently verified. The providers table lists each endpoint's context 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?

One provider serves Inkling Small through OpenRouter as of 6 November 2026: DeepInfra. 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 5 public boards tracked by ModelCap as of 6 November 2026: Arena text 1406 (#158 of 419), Arena coding 1472 (#124 of 414), LMArena Agent -17.0% (#57 of 58), ARC-AGI-2 40.1% (#119 of 280) and AA Intelligence Index 12.9 (#81 of 98). Each board page ranks every tracked model on that benchmark. The ModelCap Index scores the results its methodology admits, with published uncertainty, and shows reference boards without scoring them.

How does Inkling Small compare with Inkling?

Inkling Small ranks #109 (Index 53.5) and Inkling ranks #59 (Index 66.5) on the ModelCap Index as of 6 November 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.