Articles

25 ChatGPT-5.5 Prompts for Source-Controlled Deep Research: Plan Review, Domain Filters, Live Steering, Citation Checks, and Decision Artifacts
ByMarkos Symeonides September 10, 2026 Reading Time: 37 minutes

How to Use ChatGPT-5.5 as the Control Layer for Deep Research These prompts are designed for teams that need research outputs they can defend: market scans with explicit source boundaries, vendor comparisons with evidence grades, policy briefs with unresolved questions, executive memos with citation checks, and implementation plans that separate…

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Case Studies

ChatGPT Library Sharing Governance Guide: Viewer and Editor Roles, Folder Ownership, Access Revocation, and File Custody
ByMarkos Symeonides September 10, 2026 Reading Time: 38 minutes

Why the September 9 Library sharing update changes governance, not just collaboration OpenAI’s September 9, 2026 ChatGPT release notes introduce a material change for teams that treat ChatGPT Library as a working knowledge surface: Library users can share files and folders with named people as Viewer or Editor, share items…

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AI News

How to Run Deep Research in ChatGPT Work and Codex: Source Controls, Live Steering, Citations, and Editable Deliverables
ByMarkos Symeonides September 10, 2026 Reading Time: 40 minutes

What changed on September 9: Deep Research moved beyond ordinary Chat into Work and Codex OpenAI’s September 9 release notes state that Deep Research is now available in ChatGPT Work and Codex, expanding the feature from a research report experience in ordinary Chat into longer-running work surfaces where users may…

Read More How to Run Deep Research in ChatGPT Work and Codex: Source Controls, Live Steering, Citations, and Editable Deliverables
Downloads

ChatGPT Voice Adds GPT-5.6 and GPT-6 Astra Reasoning: New Model Controls, GPT-Live Limits, and What Changed
ByMarkos Symeonides September 10, 2026 Reading Time: 40 minutes

OpenAI’s September 9 Voice update changes the model path, not just the talking interface OpenAI’s September 9, 2026 ChatGPT release notes describe a material change to ChatGPT Voice: Voice can now use GPT-5.6 or GPT-6 Astra when it needs to search or reason through harder questions, while the real-time spoken…

Read More ChatGPT Voice Adds GPT-5.6 and GPT-6 Astra Reasoning: New Model Controls, GPT-Live Limits, and What Changed
AI News

Codex Stable vs 0.154 Alpha Playbook: Release Channels, Canary Repositories, Permissions, Checkpoints, and Rollback
ByMarkos Symeonides September 9, 2026 Reading Time: 39 minutes

Opening position: treat 0.154 alpha as evidence to evaluate, not a migration instruction As of September 9, 2026, the official GitHub release feed for OpenAI Codex shows version 0.153.4 marked as Latest, while 0.154.0-alpha.7, 0.154.0-alpha.8, 0.154.0-alpha.10.2, and 0.154.0-alpha.11 appear as prereleases. The alpha entries are labeled generically and include commit…

Read More Codex Stable vs 0.154 Alpha Playbook: Release Channels, Canary Repositories, Permissions, Checkpoints, and Rollback
ChatGPT Prompts

GPT-Image-2.5 Sunburst vs Flare vs GPT Image 2: Precision, Speed, API Routing, Token Pricing, and Rate Limits
ByMarkos Symeonides September 9, 2026 Reading Time: 37 minutes

Why this comparison starts with routing, not sticker price GPT-Image-2.5 Sunburst, GPT-Image-2.5 Flare, and GPT Image 2 should not be evaluated as a simple “premium model costs more, cheaper model costs less” ladder. OpenAI’s published pricing page lists the same standard token rates for Sunburst, Flare, and GPT Image 2:…

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25 ChatGPT-5.5 Prompts for Production Image Workflows: Creative Briefs, Owned Photos, Precision Edits, QA, and Provenance
ByMarkos Symeonides September 9, 2026 Reading Time: 36 minutes

How to Use ChatGPT-5.5 as the Production Layer for Image Work This prompt set treats ChatGPT-5.5 as the planning, governance, evaluation, and documentation layer for production image workflows, not as the image-rendering model. In the workflow used throughout this article, ChatGPT-5.5 helps a team convert a vague request into a…

Read More 25 ChatGPT-5.5 Prompts for Production Image Workflows: Creative Briefs, Owned Photos, Precision Edits, QA, and Provenance
Case Studies

How to Evaluate OpenAI’s Navier–Stokes Claim: Paper Review, Lean Verification, Expert Scrutiny, and Evidence Boundaries
ByMarkos Symeonides September 9, 2026 Reading Time: 38 minutes

What OpenAI Claimed on September 8—and What Has Not Yet Been Settled OpenAI published a September 8, 2026 claim that it has solved the Navier–Stokes existence and smoothness problem, one of the Clay Mathematics Institute’s Millennium Problems. The evidence package OpenAI released consists of a company announcement, a mathematical paper,…

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AI News

How to Diagnose OpenAI Prompt Cache Misses in the Responses API: Baselines, Reasons, Fixes, and Cost Checks
ByMarkos Symeonides September 9, 2026 Reading Time: 39 minutes

What changed on September 8: Prompt Cache Diagnostics is now generally available OpenAI’s September 8, 2026 API changelog states that Prompt Cache Diagnostics is now generally available in the Responses API for GPT-5.6 and later supported models. The feature is designed for a narrow but operationally important task: compare cache…

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Downloads

OpenAI Launches ChatGPT Images 2.5: Sketch, Precision Editing, Shared Prompts, Sunburst, and Flare
ByMarkos Symeonides September 9, 2026 Reading Time: 38 minutes

OpenAI releases ChatGPT Images 2.5 for ChatGPT users and new GPT-Image-2.5 models for developers OpenAI announced ChatGPT Images 2.5 on September 8, 2026, positioning the release as a combined upgrade for consumer creation, workplace creative review, Codex-assisted visual workflows, and application developers using the image-generation API. OpenAI says people now…

Read More OpenAI Launches ChatGPT Images 2.5: Sketch, Precision Editing, Shared Prompts, Sunburst, and Flare