Opus 4.5 — 2 Technical Articles

Feb 2, 2026 · Artificial Intelligence

Is Claude Sonnet 5 (Fennec) Really Coming? Leaked Specs Suggest Performance May Beat Opus 4.5

A leaked Google Vertex AI log reveals a new model ID claude‑sonnet‑5@20260203, hinting at a Feb 3 2026 release of Claude Sonnet 5 (code‑named “Fennec”) that reportedly scores over 82 % on SWE‑Bench, outperforms Opus 4.5, keeps the same pricing, and introduces a “Dev Team” mode with parallel sub‑agents for coding tasks.

AI modelAgentic workflowClaude Sonnet 5

0 likes · 5 min read

Is Claude Sonnet 5 (Fennec) Really Coming? Leaked Specs Suggest Performance May Beat Opus 4.5

AI Insight Log

Jan 3, 2026 · Artificial Intelligence

13 Proven Tricks to Double Your AI‑Assisted Coding Efficiency (From Claude Code’s Founder)

Boris Cherny, the founder of Claude Code, reveals a detailed 13‑step workflow that combines aggressive parallelism, Opus 4.5 with Thinking mode, a shared CLAUDE.md knowledge base, custom slash commands, sub‑agents, automated formatting hooks, permission presets, deep tool integrations, and a strict verification loop to dramatically boost AI‑driven development productivity.

AI-assisted developmentClaude CodeMCP integration

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13 Proven Tricks to Double Your AI‑Assisted Coding Efficiency (From Claude Code’s Founder)