Claude Code fallbackModel: 3-Tier Failover Setup (2026)

Claude Code fallbackModel retries up to 3 models on a 529 overload, not on 429. Set it up in 4 steps (settings.json + CLI) and know when a gateway wins.

DeepSeek V4 Flash Free (2026): 4 Zero-Cost Paths, Real Caps

DeepSeek V4 Flash free? 4 $0 paths: NVIDIA NIM free API, free web chat, OpenCode Zen, MIT 284B self-host. OpenRouter :free is a dead listing. Managed runs $0.14/M in.

Kimi K2.7 Code Free (2026): 3 Zero-Cost Paths, Real Caps

Kimi K2.7 Code free? 3 real $0 paths: free web chat, the CLI Adagio tier at 6 agent uses, Modified-MIT self-host. No OpenRouter :free variant. Managed runs $0.95/M in.

GLM 5.2 Free (2026): 3 Zero-Cost Paths and Where Limits Hit

GLM 5.2 free? 3 zero-cost paths ranked. No OpenRouter free endpoint exists; self-host needs 240GB+ RAM. Managed fallback runs $1.4/M in, $4.4/M out.

GPT-5.6 Tiers: Which of Sol, Terra, Luna to Run (2026)

GPT-5.6 has 3 tiers: Sol $5/$30, Terra $2.50/$15, Luna $1/$6 per M. Pick by job, run all three on one key, and dodge the bare-ID 404. Full setup.

GPT-5.6 Model Not Available? 6 Causes and Fixes (2026)

GPT-5.6 'model not found'? Bare gpt-5.6 404s on gateways like ofox (use -sol/-terra/-luna), GA rollout lags ~24h. 6 causes, 6 fixes, one working path.

GPT-5.6 Terra vs GPT-5.5 (2026): Half Price, Same Coding?

GPT-5.6 Terra ($2.50/$15) is exactly half of GPT-5.5 ($5/$30). Bills at 10K/100K/1M req/day, the honest benchmark read, A/B both via ofox.

Gemini CLI Free Tier Shut Down: 6 Fixes That Work (2026)

Gemini CLI's free login died June 18, 2026. Keep it running on a paid API key: fix the 429 limit:0 trap, beat the Sept 2026 key cutoff. 6 fixes.

Codex CLI Behind a Corporate Proxy: PAC/WPAD, CA Certs & HTTPS_PROXY (2026)

Codex CLI ignores PAC/WPAD proxies and hangs on connect. Fix it in 4 steps: resolve the PAC, set HTTPS_PROXY, add your CA cert. 8 common errors + a Node note.

Codex Desktop Not Showing Custom Models: 5 Fixes (2026)

Codex Desktop hides custom models from the picker? 5 fixes for the model_catalog_json bug, the cc-switch v3.16.5 patch, and a 1-line workaround.