Quick Scan
What matters today
The past two weeks reset the cost floor for AI. OpenAI released GPT-4o mini on July 18, replacing GPT-3.5 Turbo as the default model for free ChatGPT users. At $0.
Format Weekly newsletter issue
Audience Executives using AI at work
Time 6 min read
Topic ChatGPT just got a new default model. It costs 15x less.
01 Start here
Welcome byte
The past two weeks reset the cost floor for AI. OpenAI released GPT-4o mini on July 18, replacing GPT-3.5 Turbo as the default model for free ChatGPT users. At $0.15 per million input tokens, it costs fifteen times less than GPT-4o while scoring 82% on the MMLU benchmark. That combination makes AI document processing economically viable at scale for teams that previously worried about per-query costs.
02 Fast scan
Quick Hits
#01 This issue covers three stories shaping the next quarter of executive AI work: GPT-4o mini changes the math for high-volume workflows, SearchGPT's prototype signals where OpenAI plans to compete with Google and Perplexity, and Apple Intelligence's developer beta reveals what AI features arrive on your iPhone and Mac this fall at no additional subscription cost.
01 / Quick Hits
#02 Meta: LLaMA 3.1 Released
Meta released LLaMA 3.1 with 405B, 70B, and 8B parameter models. The 405B model rivals GPT-4o on several benchmarks and is fully open source.
#03 Executive angle: Executives evaluating on-premise AI deployments have their most capable open option yet.
#2 Mistral: Large 2 Released
#04 Mistral released Mistral Large 2, a 123B parameter model with strong multilingual performance across European languages.
Executive angle: Relevant for organizations with significant European operations or compliance requirements.
#05 Google DeepMind: Math Olympiad AI
AlphaProof and AlphaGeometry 2 solved International Math Olympiad problems at silver medal level.
03 Main moves
Top Updates
Upgrade to PromptHacker Premium for the full archive of executive AI playbooks.
04 Prompt to try
Pro Tip
Deep dive Building a SearchGPT Research Workflow for Competitive Intelligence
A three-query conversational sequence that converts a 45-minute manual research cycle into a 15-minute brief. Works in Perplexity today while you wait for SearchGPT access.
Copy-ready guide 05 Reuse this
Productivity Gem
Deep dive SearchGPT: OpenAI's Challenge to Perplexity and Google Search
OpenAI's new search prototype combines real-time web access with conversational AI synthesis. Three workflow patterns for executives, plus how to apply the same logic in Perplexity today.
Put it to work PB
About the author
Pierre Bradshaw Founder, PromptHacker.ai
Pierre has spent 25+ years building growth systems across fintech, real estate, lending, campaigns, and AI workflows, with $1.5B+ in client value delivered.
If you have any questions or comments about ChatGPT just got a new default model. It costs 15x less. feel free to reach out. I'd love to hear from you.
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