closed-source AI
3 picks we've reviewed.
paid1mo ago
model security
Claude Mythos
Claude Mythos is Anthropic's cybersecurity-focused, Mythos-class model — built to autonomously find and fix software vulnerabilities. Its rollout is restricted; a safeguarded public sibling, Fable 5, carries Mythos-class capability to the broader public.
Anthropic
paid · 1,050,000 tokens1mo ago
model general
GPT-5.6
OpenAI's next flagship after GPT-5 — announced June 26, 2026 as a preview and generally available since July 9, 2026 in three tiers (Sol, Terra, Luna) with published per-token pricing.
OpenAI
paid1mo ago
agent agents
Sakana Fugu
Sakana AI's multi-agent orchestration system — Fugu routes complex tasks across a network of specialized agents, all through a single model API endpoint.
Sakana AI