Claude Code SSL Certificate Error: 5 Fixes That Work (2026)
Claude Code throwing SELF_SIGNED_CERT_IN_CHAIN behind a corporate proxy? 5 fixes: OS trust store, NODE_EXTRA_CA_CERTS, and HTTPS_PROXY, without disabling TLS.
Migrate Claude Code to Codex (2026): 12 Configs, 1 Dead End
Codex 0.142 /import auto-moves most of your Claude Code config. All 12 surfaces mapped: what transfers, what breaks, the 1 dead end, and the fix.
Claude Fable 5 vs Sonnet 5 (2026): 5x Pricier, When It Pays
Fable 5 lists $10/$50, 5x Sonnet 5's $2/$10, but hits 80.3% SWE-bench Pro vs 63.2%. When the ceiling model pays, and how to route both on ofox.
Claude Sonnet 5 vs Opus 4.8 (2026): 60% Cheaper on Paper
Claude Sonnet 5 lists $2/$10 vs Opus 4.8 $5/$25, 60% cheaper. It trails 63.2% to 69.2% on SWE-bench Pro, and agentic cost can top Opus. Which to pick.
How to Choose an AI Model: 3 Questions, Not the Biggest One
Picking an AI model? Don't default to the biggest. Use 3 questions (task, volume, stakes) plus a free finder that ranks 100+ models across 15 use cases.
Codex "command failed; retry without sandbox": 6 Fixes (2026)
Fix Codex CLI "command failed; retry without sandbox" on every edit: install bubblewrap on Linux, set sandbox_mode workspace-write, approval_policy on-request. 6 fixes, 5 real 2026 issues.
Grok Build From $30/mo, or grok-build-0.1 API at $1/M (2026)
Grok Build now starts at $30/mo SuperGrok (unlocked May 24). Or run grok-build-0.1 pay-as-you-go: $1.00/$2.00 per M, Grok 4.1 Fast at $0.20/M input. Break-even math + when each wins.
Doubao Seed 2.1 API (2026): Pro & Turbo, No Volcano Signup
Call Doubao Seed 2.1 Pro ($0.884/$4.42 per M) and Turbo (half: $0.442/$2.212) from one endpoint. 256K context, one key, no separate Volcano signup.
Kimi K2.7 Code: Does a 30% Token Cut Lower Your Bill? (2026)
Kimi K2.7 Code costs the same per token as K2.6 ($0.95/$4.00). Its 30% thinking-token cut trims ~13% off a reasoning-heavy bill, under 1% input-heavy.
claude-code-sdk Import Errors After the June 2026 Rename: Why and the Fix
ModuleNotFoundError: claude_code_sdk or no export from @anthropic-ai/claude-code? The SDK moved to claude-agent-sdk. Before/after fix for TS + Python.
Rate Limit Reached in Claude Code: 429 Causes and 6 Fixes (2026)
Claude Code 429 rate limit? Tier 1 caps Sonnet 4.x at 30k ITPM / 50 RPM. Read retry-after, add backoff, cut ITPM with caching, or pool capacity. 6 fixes.