Author: Markos Symeonides

25 ChatGPT-5.5 Prompts for Drivers, Delivery Partners, and Small Merchants: Demand Planning, Promotions, Costs, and Business Ideas
ByMarkos Symeonides September 24, 2026 Reading Time: 81 minutes

Why this prompt set exists OpenAI and Grab have announced GO Forward with AI, a two-year regional skilling programme intended to help 30,000 Grab driver-, delivery-, and merchant-partners build practical AI skills. OpenAI says the programme begins in Singapore, is planned to expand to Thailand, Indonesia, and the Philippines later…

Read More 25 ChatGPT-5.5 Prompts for Drivers, Delivery Partners, and Small Merchants: Demand Planning, Promotions, Costs, and Business Ideas
Case Studies

Prepare a Safety-Case Evidence Room for Independent AI Assessment: Claims, Access, Methods, Confidentiality, and Remediation
ByMarkos Symeonides September 24, 2026 Reading Time: 76 minutes

What a Safety-Case Evidence Room Is Supposed to Accomplish A safety-case evidence room is a governed collection of claims, records, methods, evaluation artifacts, safeguard documentation, incident evidence, remediation history, access controls, and publication materials prepared so an independent assessor can test whether a developer’s or deployer’s safety argument is supported…

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AI News

Build a Voice-to-Work Workflow in ChatGPT: Email, Calendar, Slack, Browser Tasks, On-Screen Approvals, and Text Handoff
ByMarkos Symeonides September 24, 2026 Reading Time: 76 minutes

What a Voice-to-Work Workflow Is—and What It Is Not A Voice-to-Work workflow is a governed sequence for using spoken instructions to start useful work in ChatGPT, retrieve information from authorized apps, create drafts or artifacts, review proposed actions, approve only the intended external steps, capture evidence of what happened, and…

Read More Build a Voice-to-Work Workflow in ChatGPT: Email, Calendar, Slack, Browser Tasks, On-Screen Approvals, and Text Handoff
Downloads

ChatGPT Voice Adds Plugins and Work Tasks: Connected Apps, On-Screen Approvals, Text Handoff, and Data Boundaries
ByMarkos Symeonides September 24, 2026 Reading Time: 72 minutes

OpenAI expands ChatGPT Voice into plugins and Work tasks OpenAI’s September 23, 2026 ChatGPT release notes report two closely related Voice updates: Live now supports plugins on web, iOS, and Android, and Voice is available in Work on web and mobile. In practical terms, a user can speak to ChatGPT…

Read More ChatGPT Voice Adds Plugins and Work Tasks: Connected Apps, On-Screen Approvals, Text Handoff, and Data Boundaries
AI News

GPT-6 Prompt Cache FinOps Playbook: 1.25x Writes, 0.1x Reads, Tenant Accounting, Probe Resistance, and Cost-Anomaly Evidence
ByMarkos Symeonides September 23, 2026October 11, 2026 Reading Time: 69 minutes

Prompt-cache FinOps is a governance system, not a hit-rate contest Prompt caching for GPT-6 changes the unit economics of repeated input, but the operational problem is larger than making a dashboard line go up. In this playbook, prompt-cache FinOps means the combined discipline of cost attribution, tenant accounting, privacy governance,…

Read More GPT-6 Prompt Cache FinOps Playbook: 1.25x Writes, 0.1x Reads, Tenant Accounting, Probe Resistance, and Cost-Anomaly Evidence
ChatGPT Prompts

GPT-6 Sol vs Luna vs Astra: API Prices, Professional Work, Factuality, Coding, Computer Use, Caching, and Alignment
ByMarkos Symeonides September 23, 2026 Reading Time: 71 minutes

GPT-6 comparison: start with evidence, not model names OpenAI’s GPT-6 family now has three distinct members in the official source set for this article: GPT-6 Astra, GPT-6 Sol, and GPT-6 Luna. OpenAI positions Astra as its strongest overall GPT-6 model, while Sol and Luna are faster, lower-cost additions announced on…

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25 GPT-6 Sol and Luna Prompts for Model Evaluation: Coding, Research, Tool Use, Cost, and Human Review
ByMarkos Symeonides September 23, 2026 Reading Time: 86 minutes

Start with evidence, not a favorite model GPT-6 Sol and GPT-6 Luna should be evaluated as candidates for specific jobs, not as automatic replacements for an existing model. OpenAI announced Sol and Luna on September 22, 2026 as faster, more affordable members of the GPT-6 family, while stating that GPT-6…

Read More 25 GPT-6 Sol and Luna Prompts for Model Evaluation: Coding, Research, Tool Use, Cost, and Human Review
Case Studies

Choose GPT-6 Sol, Luna, or Astra for ChatGPT Work and Codex: Capability, Cost, Reasoning Effort, Permissions, and Review
ByMarkos Symeonides September 23, 2026 Reading Time: 81 minutes

Model choice is now a task, risk, and evidence decision Choosing GPT-6 Luna, GPT-6 Sol, or GPT-6 Astra for ChatGPT Work, Codex, or an API-backed workflow should not start with the model name. It should start with the task, the cost of being wrong, the evidence you have for that…

Read More Choose GPT-6 Sol, Luna, or Astra for ChatGPT Work and Codex: Capability, Cost, Reasoning Effort, Permissions, and Review
AI News

Run a GPT-6 Sol and Luna Rollout Experiment: Shadow Traffic, Task Evals, Cache-Normalized Cost, Incomplete Responses, and Rollback
ByMarkos Symeonides September 23, 2026 Reading Time: 70 minutes

Start with an experiment, not a model swap GPT-6 Sol and GPT-6 Luna should enter an existing production workflow as candidates in an evidence-led rollout experiment, not as a direct replacement for the current model ID. OpenAI announced Sol and Luna on September 22, 2026 as faster, lower-cost members of…

Read More Run a GPT-6 Sol and Luna Rollout Experiment: Shadow Traffic, Task Evals, Cache-Normalized Cost, Incomplete Responses, and Rollback
Downloads

OpenAI Launches GPT-6 Sol and Luna: Half-Price APIs, ChatGPT Work and Codex Rollout, and New Caching Controls
ByMarkos Symeonides September 23, 2026 Reading Time: 67 minutes

OpenAI adds two lower-cost GPT-6 models, but keeps Astra at the top OpenAI announced GPT-6 Sol and GPT-6 Luna on September 22, 2026, expanding the GPT-6 family with two faster, less expensive models positioned below GPT-6 Astra. In OpenAI’s launch framing, Astra remains the company’s strongest overall model for the…

Read More OpenAI Launches GPT-6 Sol and Luna: Half-Price APIs, ChatGPT Work and Codex Rollout, and New Caching Controls