Cora

Cora is an AI email assistant made by Every that, per its product page, screens a Gmail inbox, drafts replies in the user’s voice and bundles non-urgent mail into twice-daily briefs. Its general manager is Kieran Klaassen. The product page is https://cora.computer (older links used cora.every.to).

How it works (cora.computer, 2026-10-05)

• Screening: important mail stays in the inbox; the rest is handled out of the way.
• Drafts: reply drafts in the user’s communication style; Cora cannot send or delete email without a user action.
• Briefs: twice-daily digests of non-urgent mail, about a 30-second read.
• Custom instructions for how specific mail types are handled.

Platforms and billing

• Gmail and Google Workspace only; Outlook and other providers not supported (as of 2026-10-05).
• Billing: subscription with a free trial; tiers named Professional (multiple accounts) and Unlimited (unlimited accounts), plus a bundle option with other Every products. See the pricing on cora.computer.

Privacy and security (vendor statements)

• Data is not used to train models; no backdoor access to read email; Google verified and CASA Tier 2 compliant.

Development

• Built using Compound Engineering; Every’s article (2025-12-11) states that Cora has thousands of daily users (vendor claim).
• The underlying model providers are not named on the product page; the earlier claim of “built on Anthropic’s Claude” is unverified.

Alternatives

Other email tools such as Superhuman, SaneBox and Boomerang exist (author’s list, not compared or sourced here).

Sources

• https://cora.computer (2026-10-05)
• https://every.to/source-code/compound-engineering-how-every-codes-with-agents (2026-10-05)

Open items

• Exact launch date (an earlier launched: "2024" frontmatter value was removed as unverified) and the Claude 3.5 timing claim could not be verified; the “$150,000 chief of staff” marketing line was dropped.