Development

A 276B model with 12B active sets a new open cost-performance frontier

development2026-07-31

Claim

Thinking Machines' Inkling-Small, 276 billion parameters with 12 billion active, matches its larger sibling and set a new open-weight cost-performance frontier on ARC-AGI, while DeepSeek re-post-trained a flash model into an agent that outguns its own Pro preview.

Reported metric: 276B / 12B active

Reporting date: 2026-07-31 (not necessarily the event date)

Sources

Attribution and reporting linked by this record; links do not imply independent verification.

Welcome to July 31, 2026 (theinnermostloop.substack.com)

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Welcome to July 31, 2026

Actor

Evidence for

Supersedes

A model autonomously rewrites the kernels behind an 80% price cut

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Citation formatCitation text

A 276B model with 12B active sets a new open cost-performance frontier
Innermost Loop KB — secondary record
Reporting date: 2026-07-31
KB permalink: https://nicholsn.github.io/innermost-loop-kb/developments/2026-07-31-a-new-open-weight-cost-performance-frontier
Claim: Thinking Machines' Inkling-Small, 276 billion parameters with 12 billion active, matches its larger sibling and set a new open-weight cost-performance frontier on ARC-AGI, while DeepSeek re-post-trained a flash model into an agent that outguns its own Pro preview.
Attributed sources:
- Welcome to July 31, 2026 — https://theinnermostloop.substack.com/p/welcome-to-july-31-2026
This citation does not imply independent verification of linked-source claims.

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