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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Taskade
B
Symphony
A
DeepSeek
S
Gemini
A
TaglineAI project management with agents for each team.OpenAI's open-source daemon that turns your Linear board into an always-on coding agent factory — tickets go in, pull requests come out.Chinese open-weight powerhouse. Crazy cheap, genuinely smart.Google's answer. Best integrated with Workspace + free for a lot.
CategoryProductivityAgentsChatbotsChatbots
PricingFree + $8-$20/user/moFree (open-source)Free web + ultra-cheap API (~$0.14/M input tokens)Free + $20/mo Advanced (bundled with 2TB Drive)
Best forSmall teams wanting AI baked into project management.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.Developers + cost-conscious builders. Anyone fine with self-hosting.Anyone already on Google, research tasks, summarizing long documents.
Strengths
  • Custom AI agents per project
  • Doc + tasks + kanban in one
  • Affordable for teams
  • 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
  • Open weights you can self-host
  • Strong reasoning + math
  • Near-free API pricing
  • DeepSeek-V3 / R1 are serious models
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
Weaknesses
  • Feature sprawl
  • AI agents need tuning to be useful
  • 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
  • Data goes to servers in China — privacy concerns for business use
  • Chinese policy filters
  • English polish trails Western models
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
Kai's verdictB-tier. Solid product but crowded market. Try it if Notion AI feels too generic.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 price/performance. A-tier for consumer use. If you build apps, this is the budget pick.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.
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