Compare AI tools

	GitHub Copilot B	Pika A	Symphony A	Devin A
Tagline	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	The playful, accessible AI video tool.	OpenAI's open-source daemon that turns your Linear board into an always-on coding agent factory — tickets go in, pull requests come out.	Cognition Labs' autonomous coding engineer.
Category	Coding	Video	Agents	Agents
Pricing	Free (limited) + $10/mo Pro + $19/mo Business	Free + $8-$58/mo	Free (open-source)	$500/mo
Best for	Teams with GitHub already. Devs who don't want to change IDEs.	Social media creators, beginners, anyone wanting quick fun clips.	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.	Engineering teams offloading tickets. Ops/platform work.
Strengths	Great enterprise story Works in your existing IDE Chat + autocomplete	Ingredients feature — combine people, objects, scenes Lip sync + sound effects Fun, approachable UX	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	Works like an engineer — takes Slack tasks, opens PRs Handles multi-hour engineering work Reports back with what it did
Weaknesses	Less agentic than Cursor/Claude Code Model quality varies	Lower fidelity than Runway/Kling Still rough on complex scenes	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	Expensive Best for well-scoped tasks Not for solo hobbyists
Kai's verdict	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	A-tier for social/casual. B-tier for serious work. Good entry point.	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.)	A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
Link	Open →	Open →	Open →	Open →