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GitHub ran four frontier models through Copilot's harness. None won every task.
GitHub benchmarked Copilot's agent harness against Claude Code and Codex CLI on five tests. The token savings are real, and the best model depends on the task.
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AI·
OpenAI is putting Codex in every ChatGPT app, with six business plugins for non-coders
On June 2 OpenAI said Codex is coming to the ChatGPT app everywhere within weeks, and shipped six role-specific plugins for sales, analytics, design, and finance teams.
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OpenAI's Codex moved into the ChatGPT mobile app. You can approve a diff from the train now.
OpenAI shipped Codex remote control inside the ChatGPT app for iPhone, iPad, and Android on May 14. Pair via QR; the agent runs on your laptop, the review moves to your phone.
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OpenAI's models are on AWS Bedrock the day after Microsoft lost exclusivity
Amazon shipped Bedrock Managed Agents powered by OpenAI on April 28, plus Codex on Bedrock. Altman tells Stratechery the runtime matters as much as the model.
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OpenAI shipped GPT-5.5 seven weeks after 5.4. API tokens now cost twice as much.
OpenAI released GPT-5.5 (codename Spud) on April 23. The API runs at $5/$30 per million tokens, double GPT-5.4, with Pro at $30/$180.
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OpenAI's Workspace Agents kill Custom GPTs and take the fight straight to Claude Code
Workspace Agents for ChatGPT Business, Enterprise, Edu, plus Teachers launched April 22. Team-shared, cloud-run, Codex-powered. Free until May 6, then credit-based.
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OpenAI's Codex now drives your Mac, not just your code
OpenAI shipped a Codex update that can pilot desktop apps with a cursor, generate images in-line, and run parallel agents. It's the opening move in a real Claude Code fight.