coding

2026-06-11 formal-verification

Opus 4.8 One-Shots an Algorithm With Its Proof: Formal Verification Is Becoming a Hard Benchmark

A developer used Opus 4.8 to autonomously produce a polygon-intersection algorithm with a Lean proof of correctness; earlier models could not. A proof either checks or it does not, which is more honest than a leaderboard, but one case is not a general capability.

formal-verification coding evaluation

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2026-06-10 cohere

Cohere North Mini Code: Open-Weight Coding Models Are Now Competing on Self-Hostability and License Cleanliness, Not Parameter Count

Cohere, a company known for closed enterprise models, ships its first developer-facing agentic coding model: a 30B MoE (3B active) under Apache 2.0 that runs on a single H100. The 33.4 Coding Index isn't the story — the bet on sovereign self-hosting is.

open-weight agents coding

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