Everything You Need to Know About GPT-5.5
OpenAI released GPT-5.5, the first fully retrained base model since GPT-4.5. Here's the full benchmark breakdown, how it compares to Claude Opus 4.7, pricing, and what developers are saying.
Build Better with AI
Practical guides and deep dives from the Vellum team to help you cut through the noise and ship faster.
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10 Best Claude Cowork Alternatives in 2026: Reviewed & Compared
Claude Cowork is a strong desktop AI for one-off tasks, but it burns through usage limits fast and doesn't build a persistent model of who you are. Here are the 10 best alternatives.
10 Best Manus Alternatives in 2026: Reviewed & Compared
Manus is a capable autonomous AI agent, but its credit-based pricing is unpredictable and your data runs through cloud VMs you don't control. Here are the 10 best alternatives and who each is for.
Claude Opus 4.7 Benchmarks Explained
A full breakdown of Claude Opus 4.7 benchmarks: what improved, what regressed, and what it means for your agents.
AI psychosis is real, and you probably have it
Karpathy calls it AI psychosis. Garry Tan calls it cyber psychosis. Researchers call it brain fry. I call it competence addiction. Here's what's actually happening to the people building with AI.
10 Best Hermes Agent Alternatives in 2026: Reviewed & Compared
Hermes Agent is a capable terminal-first agent from Nous Research, but most people want a personal AI that lives on their device. Here are the 10 best alternatives and who each is for.
10 Best OpenClaw Alternatives in 2026: Reviewed & Compared
We tested 10 OpenClaw alternatives in 2026 across security, memory, setup, and desktop integration. Here's what we actually found — and why Vellum comes out on top.
Everything You Need to Know About Claude Mythos
Anthropic published a 200+ page system card for Claude Mythos — their most capable model yet. Here's what's in it and why it matters.
Your AI Assistant Should Work for You, Not Worry You
AI assistants need access to your stuff to be useful. We built Vellum so you never have to choose between power and safety — every security layer is designed with one assumption: what if the AI tried to work against you?
Claude Opus 4.6 vs 4.5 Benchmarks (Explained)
Explore this breakdown of Claude Opus 4.6 and how it stacks up to Opus 4.5 and OpenAI and Google models.
15 Best Make Alternatives: Reviewed & Compared
We reviewed and compared 30 platforms to filter down the 15 best Make alternatives in 2026 for your team's needs.
2026 Marketer's Guide to AI Agents for Marketing Operations
Discover the 15 AI agents every marketing team needs in 2026 to automate high impact marketing operations.