Compare AI tools

	Grok A	Symphony A	GitHub Copilot B	Luma Dream Machine A
Tagline	xAI's chatbot. Real-time X/Twitter data + fewer refusals.	OpenAI's open-source daemon that turns your Linear board into an always-on coding agent factory — tickets go in, pull requests come out.	Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.	Smooth, cinematic motion. Image-to-video specialist.
Category	Chatbots	Agents	Coding	Video
Pricing	Free + $30/mo SuperGrok + included with X Premium	Free (open-source)	Free (limited) + $10/mo Pro + $19/mo Business	Free + $10-$500/mo
Best for	Breaking news, live event tracking, users already on X.	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.	Teams with GitHub already. Devs who don't want to change IDEs.	Photographers animating stills, cinematic b-roll.
Strengths	Live access to X posts for real-time events Less restrictive on edgy questions Fast inference on Grok-3 and up	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	Great enterprise story Works in your existing IDE Chat + autocomplete	Best image-to-video in the category Great camera motion control Ray 2 model produces striking shots
Weaknesses	Writing quality trails Claude/ChatGPT Political bias debates Ecosystem is just X	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	Less agentic than Cursor/Claude Code Model quality varies	Prompt fidelity below Runway Queue times on free tier
Kai's verdict	A-tier for real-time. B-tier for everything else. Worth checking when news breaks.	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.)	B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.	A-tier. Best for cinematic image-to-video. Pair with Runway for coverage.
Link	Open →	Open →	Open →	Open →