Here’s what changed this week in AI tools — pricing shifts, new features, and platform updates worth knowing about if you use AI in your marketing or content workflow.
OpenAI: GPT-5.4 Is Here, and It Now Writes Docs and Emails Inside ChatGPT
OpenAI launched GPT-5.4 on March 5 in three tiers: Standard, Thinking (reasoning-first), and Pro. More useful for marketers: ChatGPT now supports write actions for Google and Microsoft apps, meaning you can draft emails, create docs, build spreadsheets, and schedule calendar meetings without leaving the chat. If your team leans on ChatGPT for content work, this integration is a meaningful time-saver.
Source: TechCrunch
HeyGen: Video Agent API Cost Cut by 3x, Plus ElevenLabs V3 Voice Support
If you use HeyGen’s Video Agent API to automate avatar video production, your costs just dropped significantly: billing has moved from 6 credits per minute to 2 credits per minute. On top of that, the Create Avatar Video API now supports ElevenLabs’ new V3 voice model, which delivers noticeably more natural-sounding output. Both updates are live now and require no changes on your end.
Source: HeyGen Changelog
Perplexity: New “Model Council” Runs Three AI Models at Once and Synthesizes Their Answers
Perplexity Pro and Max subscribers now have access to “Model Council,” a feature that simultaneously runs GPT-5.4, Claude Opus 4.6, and Gemini 3.1 Pro on your query, then synthesizes where they agree, where they diverge, and what each uniquely contributes. For marketers doing competitive research, strategy work, or content ideation, this is a fast way to pressure-test ideas across multiple models without switching tabs.
Source: Perplexity Changelog
Canva Joins Forces on Helios: Full 60-Second AI Videos at Real-Time Speed
Canva partnered with ByteDance and Peking University to release Helios, a video generation model that produces full 60-second videos at real-time speed on a single GPU. If you rely on Canva for social content, this signals a major leap in video capability coming to the platform. Short-form video for ads, reels, and explainer content could get dramatically faster to produce.
Source: Sci-Tech Today
Anthropic Claude: Memory Now Available to All Users
Anthropic rolled out persistent memory to all Claude users in early March, meaning the assistant can now retain your preferences, tone guidelines, and context across separate conversations. If you use Claude regularly for writing, editing, or client work, you no longer need to re-paste your brand voice or instructions at the start of every session. This update is already live for free and paid accounts.
Source: Build Fast With AI
ChatGPT Begins Testing Ads: Sponsored Responses Now Live With Select Brands
OpenAI has started testing sponsored responses inside ChatGPT with brands including Best Buy, Target, and Expedia. The format surfaces contextual recommendations rather than banner ads, blending into normal responses. For marketers, this is a new channel worth watching closely: if it scales, AI-assistant advertising could become as significant as paid search has been for the past two decades.
Source: MarketingProfs