GPT-5.6 Luna | byteiota

Tag: GPT-5.6 Luna

Split-screen showing ChatGPT reasoning slider versus unchanged API terminal, representing the GPT-5.6 Sol retune

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GPT-5.6 Sol Retune: What ChatGPT’s Update Means for Developers

OpenAI retuned GPT-5.6 Sol in ChatGPT for Plus/Pro users and removed the free tier chat ...

August 9, 2026

GPT-5.6 Sol fast mode API diagram showing Sol Terra Luna model tiers

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GPT-5.6 Sol Fast Mode Is Live — Here’s What Changed

OpenAI shipped GPT-5.6 Sol retune, Fast Mode API (2.5x speed), and unlimited Luna for free ...

August 7, 2026

Codex CLI terminal interface with Guardian shield icon showing cost reduction from GPT-5.4 to GPT-5.6 Luna

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Codex CLI v0.146.1: Auto-Review Moves to GPT-5.6 Luna, Costs Drop 12x

OpenAI Codex CLI v0.146.1 upgrades Guardian auto-review from GPT-5.4 to GPT-5.6 Luna. Input costs drop ...

August 6, 2026