Alternatives to GPT-5.6 Terra

These tools sit near GPT-5.6 Terra. Compare features and pricing before you switch.

OpenAI frontier flagship GPT-5.6 Sol: 1.05M context, effort up to max plus ultra, $5/$30 per 1M tokens.

15000000DR: 95AS: 95

OpenAI GPT-5.6 Luna: fast affordable GPT-5.6 tier, 128k context, $1/$6 per 1M tokens. Rechecked 2026-08-18.

15000000DR: 95AS: 95

OpenAI's previous frontier model: 400k context, 128k max out, $1.75/$14 per 1M tokens. Docs now recommend GPT-5.6 Sol.

5000000DR: 95AS: 85