Launches on 2026-09-30

Google’s Gemini 4 frontier model, announced on 30 September 2026 and so far released only to trusted cyber defenders in its Fairwind Program; $2 in and $10 out per million tokens at launch, then $4 and $20.

An open-source (MIT) tool for B2B cold-email sequences sent from mailboxes you already own: multi-step campaigns, reply labelling, and control from coding agents through an MCP server. Free hosted or self-hosted.

An email API and command-line tool that gives applications and AI agents real inboxes on your own domain: receive mail as JSON, route each address to an endpoint, and reply in the same thread. From $4 a month.

Cohere’s multimodal embedding model for enterprise search and retrieval, released 30 September 2026: text, images, mixed and parsed documents in 100+ languages, 128K context, $0.12 per million text tokens.

The lower-cost model of Cohere’s Embed 5 family, released 30 September 2026: multimodal, multilingual embeddings with 128K context and the same dimension and quantisation options as Embed 5 Pro, at $0.08 per million text tokens.

A memory layer for AI agents: send it emails, call notes, tickets and chats with timestamps, and it returns current facts with dated sources, limited to what the asking user may see. Pay as you go, or a Flex plan from $99 a month.

An open-source, self-hosted email API compatible with Resend: send transactional mail, broadcasts and automations through your own Amazon SES account, with templates, webhooks, SMTP and an MCP server. Free to self-host.

Cantina Security’s first open-weight security model, published 30 September 2026 under MIT: a reinforcement-learning post-train of GLM-5.3-Flash for vulnerability research, reading code, using tools and verifying exploits in a target.