Inkling

Multimodal
Thinking Machines Lab

Inkling is Thinking Machines Lab's 975B-parameter open-weights Mixture-of-Experts model, released under Apache 2.0 on 2026-07-21. It accepts text, image, and audio input and generates text, with native reasoning and variable thinking effort (the published figures use effort=0.99). The vendor model card reports 97.1% on AIME 2026, 77.6% on SWE-Bench Verified, 73.5% on MMMU-Pro, 77.2% on audio MMAU, and 91.4% on the VoiceBench average, positioning it as the flagship sibling of the smaller Inkling-Small. It is served by DeepInfra with a 512K-token context window at $0.95 / $4.05 per 1M input/output tokens.

Key Specifications

Parameters
975.0B
Context
524.3K
Release Date
July 21, 2026
Average Score
61.8%

Timeline

Key dates in the model's history
Announcement
July 21, 2026
Last Update
September 11, 2026
Today
September 19, 2026

Technical Specifications

Parameters
975.0B
Training Tokens
-
Knowledge Cutoff
-
Family
-
Capabilities
MultimodalZeroEval

Pricing & Availability

Input (per 1M tokens)
$0.95
Output (per 1M tokens)
$4.05
Max Input Tokens
524.3K
Max Output Tokens
524.3K
Supported Features
Function CallingStructured OutputCode ExecutionWeb SearchBatch InferenceFine-tuning

Benchmark Results

Model performance metrics across various tests and benchmarks

Programming

Programming skills tests
SWE-Bench Verified
Vendor model card; Inkling effort=0.99; vendor SWE-Bench harness.Self-reported
77.6%

Other Tests

Specialized benchmarks
AA-Omniscience Index
Vendor model card; Inkling effort=0.99; signed AA Omniscience index.Self-reported
1.1%
AIME 2026
Vendor model card; Inkling effort=0.99.Self-reported
97.1%
CharXiv-R
Vendor model card; Inkling effort=0.99; reasoning questions without Python.Self-reported
78.1%
GDPval-AA
Vendor model card; Inkling effort=0.99; GDPval-AA v2 Elo.Self-reported
41.3%
Global-MMLU-Lite
Vendor model card; Inkling effort=0.99.Self-reported
88.7%
Humanity's Last Exam (no tools, text-only)
Vendor model card; Inkling effort=0.99; text-only HLE without tools.Self-reported
29.7%
Humanity's Last Exam (with tools, text-only)
Vendor model card; Inkling effort=0.99; text-only HLE with tools.Self-reported
46.0%
IFBench
Vendor model card; Inkling effort=0.99.Self-reported
79.8%
MCP Atlas
Vendor model card; Inkling effort=0.99.Self-reported
76.0%
MMAU
Vendor model card; Inkling effort=0.99; audio understanding.Self-reported
77.2%
MMMU-Pro
Vendor model card; Inkling effort=0.99; Standard 10 setup.Self-reported
73.5%
SimpleQA Verified
Vendor model card; Inkling effort=0.99.Self-reported
43.9%
Tau3 Banking
Vendor model card; Inkling effort=0.99; banking domain.Self-reported
23.7%
Terminal-Bench 2.1
Vendor model card; Inkling effort=0.99; Best Harness setup.Self-reported
63.8%
VoiceBench Avg
Vendor model card; Inkling effort=0.99; aggregate VoiceBench score.Self-reported
91.4%

License & Metadata

License
apache_2_0
Announcement Date
July 21, 2026
Last Updated
September 11, 2026

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