Anthropic Releases Advisor Strategy — Opus Supervises Sonnet for Less

Anthropic shipped the Advisor Strategy for the Messages API, pairing Opus 4.6 as an advisor to Sonnet or Haiku. Scores 2.7 percentage points higher on SWE-bench Multilingual than Sonnet alone while costing 11.9% less per task. A practical pattern for production agent deployments.

Visa and Nevermined Enable AI Agent Card Payments

Visa partnered with Nevermined to let AI agents make autonomous card purchases within cardholder-defined policies, using Visa Intelligent Commerce and Coinbase's x402 protocol. Agents can now spend money on your behalf with configurable limits.

OpenAI Launches $100/Month Pro Tier with 5x Codex Usage

OpenAI introduced a Pro tier at $100/month offering 5x more Codex usage than Plus, with a limited-time 10x promotion through May 31. Aimed at power users and developers who've been hitting Plus limits on agent-heavy workflows.

Hermes Agent v0.8.0 Ships with Self-Optimizing Benchmarks

Nous Research released Hermes Agent v0.8.0, merging 209 PRs and resolving 82 issues. New features include self-optimizing benchmarking, live model switching, and background task notifications. The release pushed Hermes to 35K+ GitHub stars.

Z.ai Open-Sources GLM-5.1 for Long-Horizon Autonomous Engineering

Z.ai released GLM-5.1 under MIT license, a model specifically built for extended autonomous engineering sessions rather than short reasoning bursts. Designed for multi-hour coding tasks where the model needs to maintain coherent plans across long contexts.

Perplexity Launches Billion Dollar Build Competition

Perplexity announced an 8-week competition where teams use Perplexity Computer to build a company with a path to $1B. Finalists can secure up to $1M in investment from the Perplexity Fund plus $1M in compute credits.