Agent Dev Tools▸What changed in the major AI coding CLIs?▸time machine

What changed in the major AI coding CLIs?

version 57 · published 37d ago · superseded by v59

Current state

Codex shipped over 150 updates in two months, adding SLGO for multi-agent parallelism, GPT-5.6 Ultra Mode, and inline editing for SEO [6268]. Plugins are now enabled by default, with npm marketplace integration, MCP tool search, system proxy support, and Amazon Bedrock models [6267]. A mobile update added task management and diff filters [745]. Claude Code released 'Frontend Design', an official skill for aesthetic-driven UI, with 161k GitHub stars [6263]. Anthropic standardized Fable 5 access at 50% for intensive plans and will include it in Max and Team Premium from July 20 [6259, 6076]. Claude for Teachers offers free premium capabilities to verified K-12 US educators [6258]. Kimi K3, a 2.8T parameter open-weight model, matches Fable 5 and GPT-5.6 on benchmarks and is integrated into Codex [6085, 5893]. Google's Gemma 4 uses MTP drafters for 3x faster generation locally [6087]. NVIDIA released DeepStream 9.1 with 13 agentic skills for video analytics via natural language [5888].[11]

Timeline

Codex v0.144.3 introduced mobile control via ChatGPT, multi-agent handoffs, and DigitalOcean cloud workspaces [6090]. OpenAI released a major update enabling plugins by default, npm marketplace, and improved MCP tool search [6089]. Anthropic released Claude Sonnet 5, which can plan, use tools, and run autonomously [51]. Claude Code became free, and connecting it to free backends removes usage caps [841]. Anthropic announced standardizing Fable 5 access at 50% for intensive plans [6078], then released Frontend Design skill [6263]. Kimi K3 was released and integrated into Codex [6085, 5893]. Claude for Teachers launched [5691]. Gemma 4 with MTP drafters landed [5708]. DeepStream 9.1 was released with agentic skills [5701].[11]

Upcoming catalysts

OpenAI targets July 7 for GPT-5.6 release, with models Sol, Terra, and Luna [459]. Codex resets have expiration dates, with a potential global reset coinciding with the release [986]. Anthropic will include Fable 5 in Max and Team Premium plans at 50% limits starting July 20 [6076]. A hackathon runs July 7-13 [343]. Spriterrific, an AI sprite generation tool, is nearing release with agent-first integration [6084]. Claude for Open Source program expanded, offering 6 months of Claude Max 20x free [784].[6]

What changed in this versionvs v56

Shifted focus to high‑level model releases (Kimi K3, Gemma 4), Claude Code’s Frontend Design skill, Fable 5 access changes, and upcoming GPT‑5.6 integration; the exhaustive list of minor bug fixes has been condensed.

+Codex shipped over 150 updates in two months, adding SLGO for multi-agent parallelism, GPT-5.6 Ultra Mode, and inline editing for SEO [6268].

+Plugins are now enabled by default, with npm marketplace integration, MCP tool search, system proxy support, and Amazon Bedrock models [6267].

+A mobile update added task management and diff filters [745].

+Claude Code released 'Frontend Design', an official skill for aesthetic-driven UI, with 161k GitHub stars [6263].

+Anthropic standardized Fable 5 access at 50% for intensive plans and will include it in Max and Team Premium from July 20 [6259, 6076].

+Claude for Teachers offers free premium capabilities to verified K-12 US educators [6258].

+Kimi K3, a 2.8T parameter open-weight model, matches Fable 5 and GPT-5.6 on benchmarks and is integrated into Codex [6085, 5893].

+Google's Gemma 4 uses MTP drafters for 3x faster generation locally [6087].

−Codex shipped 150+ updates in 2 months, including SLGO for parallel multi-agent workflows and Ultra Mode for complex project planning [6091].

−Codex v0.144.3 introduced mobile control via ChatGPT app, multi-agent handoffs, and DigitalOcean cloud workspace integration [6090].

−OpenAI released a major Codex update enabling plugins by default, npm marketplace integration, and improved MCP tool search [6089].

−OpenAI updated Codex with features including remote control via phone, DigitalOcean cloud workspaces, multi-agent task splitting, and indexed web search [6088].