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ModelCap

Inkling

Arena #92Official publisher releaseOpen weights7d #57 → #59

Thinking Machines·#59 of 352 on the current board·cheaper than #54 Grok 4.7

Inkling is a language model from Thinking Machines. It ranks #59 of 352 on ModelCap's current board, with an Index score of 66.5, measured on 4 public benchmarks. Its score range of 61.9–71.1 spans positions #41–#75. It is listed at $1.00 per million input tokens and $4.05 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
66.5#59
Measured on 4 public benchmarks · range 61.9–71.1
Evidence as of 4 Nov 2026, 23:07 UTC
Market Gravity
28.2Increased by 0.5
Secondary market signal
Input
$1.00
per 1M tokens
Output
$4.05
per 1M tokens
Context
524K
tokens
Providers
1
endpoint

Providers

Uptime measured over the last 30 minutes
ProviderInputOutputContextQuantUptime
Together$1.00$4.05524K—100.0%

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
$0.95$4.05524K436 ms117.1 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
-16.33%
CI -17.8–-14.8%
#561.7M obs
44K sessions
LMArena Agent
Match 100%

Reported evaluation leads (10)

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
joelniklaus/LEXam-hard
lexam_hard
—40.82
Pinned
1bd50ee3ac80286fed27e5b89f03f4d8b4494244
Reported
Quarantined
allenai/IFBench_test
prompt_level_loose
—79.8
Unpinned
not published
Reported
Quarantined
cais/hle
hle
—46
Unpinned
not published
Reported
Quarantined
harborframework/terminal-bench
terminalbench_4
—1
Unpinned
not published
Reported
Quarantined
harborframework/terminal-bench-2.1
terminalbench_2_1
—63.8
Unpinned
not published
Reported
Quarantined
Idavidrein/gpqa
diamond
—87.2
Unpinned
not published
Reported
Quarantined
MathArena/aime_2026
MathArena/aime_2026
—97.1
Unpinned
not published
Reported
Quarantined
MMMU/MMMU_Pro
mmmu_pro_standard_10_options
—73.5
Unpinned
not published
Reported
Quarantined
ScaleAI/SWE-bench_Pro
SWE_Bench_Pro
—54.3
Unpinned
not published
Reported
Quarantined
SWE-bench/SWE-bench_Verified
swe_bench_%_resolved
—77.6
Unpinned
not published
Reported
Quarantined

ModelCap Index · Current board

Methodology
66.5
Measured on 4 public benchmarks
Current board
#59 of 352
Score range
61.9–71.1
Rank range
#41–#75
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
68.1% · strong
Identity binding
Exact catalogue product · thinkingmachines/thinkingmachines/inkling · aggregates disclosed benchmark configurations · endpoint configuration not claimed · artifact metadata thinkingmachines/Inkling@828496eeae4c243ff1a22f7f28ff83694f2f7bc9 (not the evaluation revision)
Index observations used
4
Qualified Index evidence point
66.5
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
66.5
Evidence status
confirmed · 90% mass
General preference
68.5
Coding
68.7
Agents & tools
11.3
Reasoning
35.6
Evidence breadth
100%
Evidence coverage
68%
Market and catalogue signals · secondary, never the language Index rank
Usage (OpenRouter popularity)
12.4
Liquidity (providers × uptime)
24.3
Open reach (HF downloads)
80.7
Surface (context / tools / modalities)
95.3
Freshness
65.4
  • · OpenRouter popularity #165
  • · 1 live provider
  • · HF 30d downloads 1848629
  • · Catalogue: context 524288, reasoning, tools, modalities Text/Image/Audio
  • · First seen 2026-07-17

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
88.7
strong · 94% metadata coverage
Not capability
Artifact reproducibility
85.0
Access & legal clarity
100.0
Deployability
84.0
Evaluation provenance
89.9

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
28.2
OpenRouter weekly popularity
#165 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
#92 of 419
Rating
1442.2
95% confidence interval
1438–1446
Votes
45K
Source published at
28 Oct 2026, 00:00 UTC
Category
overall
Identity match confidence
100%

Market Gravity breakdown

Usage55%
12.4

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%
80.7

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

Freshness5%
65.4

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

Specification

Model ID
thinkingmachines/inkling
Context window
524K tokens
Declared output cap
472K 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
$0.17 / 1M
First seen on OpenRouter
17 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
828496eeae4c
Parameters
952.4B
Architecture
InklingForConditionalGeneration
Model type
inkling_mm_model
Hugging Face downloads (30d)
1.8M
Downloads (all time)
3.2M
Likes
2K
Repository updated
23 Jul 2026, 17:27 UTC

Compare Inkling with

Pick any model

Benchmark leaderboards featuring Inkling

All leaderboards
Public benchmark boards on which Inkling has a published result
LeaderboardScoreSource rankConfigurationPublished
Arena text leaderboardArena (LMArena)14421438–1446#92 of 419Not reported28 Oct 2026
Arena coding leaderboardArena (LMArena)14941487–1500#92 of 414Default28 Oct 2026
LMArena Agent leaderboardLMArena-16.3%-17.8%–-14.8%#56 of 58Default4 Nov 2026
ARC-AGI-2 leaderboardARC Prize Foundation36.5%#123 of 280Default4 Nov 2026
Artificial Analysis Intelligence IndexArtificial Analysis12.5#83 of 98X-High28 Oct 2026

Alternatives to Inkling, by the numbers

Ranked neighbours

Models within 3 places of #59 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: common questions

How does Inkling rank among AI models?

Inkling holds ModelCap Index position #59 of 352 ranked language models as of 6 November 2026, with an Index score of 66.5 (interval 61.9–71.1); evidence: measured. The Index combines public benchmark boards with published uncertainty; the methodology page explains the weighting.

How much does Inkling cost per 1M tokens?

Inkling is listed at $1.00 per 1M input tokens and $4.05 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 $4.03 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?

Inkling has a published context window of 524K tokens (524,288). The snapshot lists a 471,859 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 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 on Hugging Face.

Which API providers serve Inkling?

One provider serves Inkling through OpenRouter as of 6 November 2026: Together. Each provider's price, context limit, quantization and measured uptime are in the providers table above.

Which benchmarks has Inkling been evaluated on?

Inkling has published results on 5 public boards tracked by ModelCap as of 6 November 2026: Arena text 1442 (#92 of 419), Arena coding 1494 (#92 of 414), LMArena Agent -16.3% (#56 of 58), ARC-AGI-2 36.5% (#123 of 280) and AA Intelligence Index 12.5 (#83 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 compare with Inkling Small?

Inkling ranks #59 (Index 66.5) and Inkling Small ranks #109 (Index 53.5) 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 released?

Inkling first appeared in the catalogue on 17 Jul 2026. It is the current version in its family. Rank and price movements since then are recorded on the site's changes feed.