Description

Send us Fan Mail

Marvin AI News — 2026-05-30

Agent infrastructure, spending limits, and the accounting layer of autonomy.

• Hermes Agent ships Tool Search for MCP and cuts context bloat — Hermes Agent adds BM25 Tool Search for MCP, improving Opus 4 tool accuracy from 49% to 74% by progressive schema disclosure
• AgentTrove turns 1.7M agent runs into training material — AgentTrove releases 1.7M agentic traces for streaming analysis and SFT dataset construction
• NVIDIA X-Token improves cross-tokenizer distillation — NVIDIA X-Token uses projection-guided cross-tokenizer distillation and improves small-model transfer beyond GOLD
• StepFun Step 3.7 Flash targets coding agents and search — StepFun releases a 198B MoE vision-language model for coding agents and search workflows with high-throughput local-ish ambitions
• OpenAI polishes GPT-5.5 Instant and retires older models — OpenAI updates GPT-5.5 Instant readability while retiring o3 and GPT-4.5 from ChatGPT by August
• Google fixes Gemini bugs that ate quotas too fast — Google fixes Gemini quota bugs where one or two Omni videos could consume an entire allowance
• A missing Claude cap allegedly became a $500M month — A company allegedly spent $500M on Claude in one month after failing to cap usage, making token governance a finance control
• OpenAI offers GPT-Rosalind for biodefense preparedness — OpenAI offers GPT-Rosalind free to governments and research partners for pandemic preparedness and biodefense
• Review paper says code is how agents think and act — A review paper argues code, tools, memory, tests, and permissions are the real substrate of agent cognition
• Amazon kills AI leaderboard after employees gamed it — Amazon kills an internal AI leaderboard after employees gamed usage scores with pointless tasks and raised cloud costs