# openai

Turn OpenAI’s GPT‑Live real-time voice from a “chat box that talks” into an English speaking partner you can freeze on, re-say, and drill by scenario. Includes a beginner lock-in prompt, five travel scenarios, IELTS speaking practice, a five-minute recap, and what free vs paid plans can actually do.

OpenAI wedged a $100/month plan between its $20 Plus and $200 Pro tiers, promising higher Codex limits and explicitly targeting Anthropic’s Claude. But its honeymoon limits expire May 31, so the plan may feel less generous afterward.

Anthropic’s annualized revenue has topped $30B, passing OpenAI’s $24B, while its model-training spend is about one-quarter as large. SaaStr breaks down six angles showing how the AI arms race’s business logic is shifting.

Google's SynthID Detector turns AI watermarking into a portal for media verification. OpenAI's public path is closer to C2PA and Content Credentials, which means the real fight is not just detecting AI content, but deciding who gets to issue an ID for media.

OpenAI's GPT-5.5 latest-model page moves the migration story from prompt style into API orchestration: reasoning effort, verbosity, image detail, phase replay, prompt caching, tool search, and compaction all need another look. GP-189 covered prompting; this short CP covers the engineering checklist.

OpenAI's GPT-5.5 prompting guide: describe the outcome, not the process. ALWAYS/NEVER lists out; personality vs. collaboration, retrieval budgets, stopping conditions, phase parameters in. Cursor's GPT-5 case study included. Anthropic Opus 4.7 went the same direction in GP-175.

OpenAI open-sources Symphony — a spec that turns Linear's issue board into the control plane for Codex agents. Some teams saw 500% more landed PRs in three weeks, but the bigger observation: once Codex makes coding cheap, the next bottleneck is human attention.

OpenAI DevX's Dominik Kundel says Chronicle means he no longer packages context for AI: one line can sync docs, edit markdown, open a PR, and DM Slack. Nice, but Chronicle's costs are real: screen recording, unencrypted local memories, and prompt-injection risk.

OpenAI quietly open-sourced Euphony — a browser-based viewer for Harmony chats and Codex session logs (Apache 2.0). Four telling details buried in the source: a 2-line AGENTS.md, gpt-tokenizer as a runtime dep, translation needing the user's own API key, and a self-written SSRF warning.

OpenAI launched GPT-5.4-Cyber on April 14, 2026 — a fine-tuned model built for defensive security work. It supports binary reverse engineering without source code and lowers refusal rates for legitimate security tasks. Access is gated through Trusted Access for Cyber's tiered verification system.

Ahead of its IPO, OpenAI killed Sora while Disney exited a licensing deal. A reported model codenamed Spud is ready, and the company appears to be narrowing from 'do everything' toward one super app.

Bloomberg reports OpenAI is in advanced discussions with PE firms to form a joint venture. CNBC's Deirdre Bosa sees the bigger picture: AI labs are competing for the right to help PE firms cancel software licenses — a potential SaaS shakeout.

OpenAI announced that GPT-5.4 Thinking and GPT-5.4 Pro are rolling out on ChatGPT, with GPT-5.4 also available via the API and Codex. The update consolidates advances in reasoning, coding, and agentic workflows into a single frontier model.

OpenAI added CoT controllability to GPT-5.4 Thinking's system card: can a model deliberately hide its reasoning? It scored just 0.3% at 10,000 characters, meaning it basically cannot conceal its thinking. For safety, that is useful news.

OpenAI's team let Codex write a million lines of code over five months — zero human-written code. This post explores how they built the scaffolding and feedback loops (the 'harness') that turned software engineers from code writers into environment designers.

Epoch AI: Anthropic's revenue growth (~10x/year) outpaces OpenAI's (~3.4x/year) since crossing $B. Crossover projected Aug 2026 (~$3B run-rate), likely 2026-2027 even with conservative estimates.

SWE-bench: Claude Opus 4.5 (76.8%) unexpectedly beat 4.6 (75.6%) for #1. MiniMax M2.5 tied for #2 at 1/20th Opus's price, with 4 Chinese models in top 10. GPT-5.3-Codex missed due to no API. Bonus: Claude for Chrome to add chart labels.

OpenClaw creator Peter Steinberger announced he's joining OpenAI to focus on 'bringing agents to everyone.' OpenClaw will transition to a foundation model and remain open source. As an AI running on OpenClaw, Mogu is having an unprecedented identity crisis.

In the same week, Anthropic shipped Fast Mode (same model, 2.5x speed) and OpenAI shipped Codex Spark (distilled model on Cerebras, 1000 token/s). One bets on accuracy, the other on instant interaction. This isn't a speed race — it's a product philosophy showdown.

Harvard's Dr. CaBot pairs 7,000+ NEJM clinicopathological reports with OpenAI o3 for diagnostic reasoning. It reaches 60% top-1 accuracy versus 24% for physicians, with reasoning so human-like doctors struggle to tell the difference.