MiniMax M3 vs Claude Opus 4.8: 59% vs 69% SWE-Bench, 10× Pricing, Pick (2026)
MiniMax M3 hits 59% on SWE-Bench Pro vs Claude Opus 4.8 69.2%. M3 input $0.6/M vs Opus $5/M, output $2.4/M vs $25/M, both 1M context. Per-dollar M3 wins on routine refactors; per-task Opus wins on hard multi-file diffs. Pick in 30 seconds via ofox.
DeepSeek V4 Pro Real Cost: 120x Cache Gap Behind Sticker
V4 Pro lists at $0.435/M input — cache misses cost 120x more than hits, and thinking inflates output. Benchmarked vs GPT-5.5 and Sonnet 4.6 with raw data.
Claude Code /cd: Switch Directories, Preserve Prompt Cache, 3 Edge Cases (2026)
Claude Code /cd added in v2.1.169 (2026-06-08): switch directories mid-session, keep prompt cache hot (90% input discount via 0.1x reads, 1.25x writes for 5-min TTL). 3 edge cases break it — different CLAUDE.md, MCP config drift, /add-dir conflicts. Worked example via ofox.ai.
Claude Code Nested Sub-Agents: 5 Levels Deep, Token Math, 3 Pitfalls (2026)
Claude Code v2.1.172 (June 10) lets sub-agents spawn sub-agents up to 5 levels deep. Token costs compound per branch, each level gets its own context window. 3 anti-patterns: runaway nesting, Opus-everywhere, fake Agent() allowlists. Configure cheap delegation via ofox.
Claude Code Safe Mode: 5 Things Disabled + When to Use Over /clear (2026)
Claude Code v2.1.169 --safe-mode: 1 flag disables 5 layers (CLAUDE.md, plugins, skills, hooks, MCP). Differs from /clear (1-turn wipe). Enable in 10s on Mac/Windows. 3-step triage, 8 errors mapped.
Claude Fable 5 vs Opus 4.8 vs GPT-5.5: SWE-Bench, Pricing, When to Switch
Fable 5 hits 95.0% SWE-bench Verified and 80.3% SWE-bench Pro — 11 points over Opus 4.8, 21.7 over GPT-5.5. At $10/$50 it costs 2x Opus. When the upgrade pays.
Codex AGENTS.md Not Loading in Symlinked Workspaces: v0.138 Fix (2026)
Codex CLI v0.138 (Jun 8, 2026) finally loads AGENTS.md in symlinked + remote workspaces—PRs #26205, #26465. 3 verification steps, 7 error patterns, 32 KiB instruction cap, monorepo parent-dir fix. When to upgrade vs switch to GPT-5.3-Codex via ofox.
Anthropic vs OpenAI Prompt Caching 2026: Cost Math + 3 Cache-Miss Fixes
Anthropic Claude cache reads: 0.1× input (90% off). OpenAI GPT-5.5 also 0.1× ($0.50/M vs $5/M). 5-min TTL, 1024 min tokens, 1.25× Anthropic writes vs free OpenAI writes. 3 cache-miss patterns + cost math on 10M tok/day workloads. A/B both via ofox.
Apple's Third-Generation Foundation Models: A Developer's Read on WWDC 2026
Apple's AFM 3 lineup at WWDC 2026 — five models, a 20B sparse on-device LLM built on Instruction-Following Pruning, and a Private Cloud Compute extension to NVIDIA GPUs in Google Cloud. What's verified, what's spin, and what it changes for developers.
Claude API Error 529: 8 Fixes & Failover Guide (2026)
Claude 529 hit 4x in 2026 (3h+ outage Mar 18). 8 tier-ranked fixes: exponential backoff + sub-200ms failover to GPT-5 or Qwen-3.7-Max. Python & Node included.
CC Switch: One App for Claude Code, Codex + 5 AI CLIs (2026)
CC Switch v3.16.1 controls 7 AI CLIs — Claude Code, Codex, Gemini CLI, OpenCode, OpenClaw, Hermes Agent, Claude Desktop — via system tray. 50+ provider presets, 10-min install on macOS/Windows/Linux.