Compare AI tools

	Devin A	Symphony A	HeyGen S	Rows A
Tagline	Cognition Labs' autonomous coding engineer.	OpenAI's open-source daemon that turns your Linear board into an always-on coding agent factory — tickets go in, pull requests come out.	AI avatar videos. Record once, speak any language.	Spreadsheets with AI + live integrations baked in.
Category	Agents	Agents	Video	Data
Pricing	$500/mo	Free (open-source)	Free + $24-$65/mo	Free + $19-$89/user/mo
Best for	Engineering teams offloading tickets. Ops/platform work.	Engineering teams already using Linear + OpenAI Codex who want to stop babysitting agent sessions and instead let the issue tracker drive autonomous coding at scale.	Course creators, multilingual marketers, anyone scaling video content.	Ops teams, marketers, anyone building dashboards from multiple sources.
Strengths	Works like an engineer — takes Slack tasks, opens PRs Handles multi-hour engineering work Reports back with what it did	Fully autonomous ticket-to-PR pipeline: every open Linear issue gets its own isolated Codex agent without manual supervision Fault-tolerant Elixir/OTP architecture automatically restarts crashed agents and manages hundreds of concurrent runs WORKFLOW.md keeps all orchestration policy version-controlled inside the repo, so agent behavior is reproducible and reviewable like code Proven internal results: OpenAI reported a 500% increase in landed PRs on some teams within three weeks Open spec encourages community re-implementations in any language, not just Elixir	Clone your face + voice in 2 minutes Instant translation into 40+ languages with lip sync Avatars look less uncanny than competitors	Pull live data from Stripe, Slack, Google Analytics, etc. AI functions inside cells Modern UX
Weaknesses	Expensive Best for well-scoped tasks Not for solo hobbyists	Currently only supports Linear as an issue tracker — GitHub Issues and Jira integrations are not yet official Only OpenAI Codex is officially supported as the agent runtime; other model integrations are community-contributed and incomplete Self-hosted, Elixir-dependent engineering preview with no built-in sandboxing — not suitable for untrusted or production environments out of the box	Pricey for serious volume Long shots still feel off Ethics — easy to misuse	Not a full Excel replacement for heavy users Integrations best on paid tiers
Kai's verdict	A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.	Symphony is the most architecturally serious 'issue tracker as control plane' approach yet — 15K GitHub stars in weeks confirms the idea resonates — but it's still a rough, self-hosted engineering preview that demands Elixir chops and a Linear-only workflow. (Verdict pending Phi's full review.)	S-tier for multilingual video. If you sell courses or speak at events, this is a cheat code.	A-tier. The most interesting spreadsheet in years. Great for ops dashboards.
Link	Open →	Open →	Open →	Open →