Compare AI tools

	Windsurf A	Symphony A	Replicate S	Ollama S
Tagline	Codeium's agentic IDE. Cascade agent + strong free tier.	OpenAI's open-source daemon that turns your Linear board into an always-on coding agent factory — tickets go in, pull requests come out.	Run any open-source AI model with an API call.	Run LLMs locally. One-line install, GUI optional.
Category	Coding	Agents	Dev Platform	Dev Platform
Pricing	Free + $15/mo Pro	Free (open-source)	Pay per second of compute	Free + open source
Best for	Developers who want Cursor-like power for less money.	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 using open-source models (Flux, SDXL, Whisper, etc).	Devs wanting offline/local LLMs for privacy or experimentation.
Strengths	Cheaper than Cursor Cascade agent for multi-file tasks Solid free tier	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	Tens of thousands of models (image, video, audio, LLMs) One-line API for any model Cog framework for custom model deploy	Run Llama, Mistral, Qwen, etc. on your laptop Simple CLI + API Hardware-aware (picks the right quant)
Weaknesses	Smaller community Model selection more limited	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	Cold starts on less-popular models Pricing gets real at scale	Needs beefy laptop for larger models Speed way behind cloud APIs
Kai's verdict	A-tier. Close second to Cursor. If $5/mo matters, start here.	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 open-source model APIs. The default in this space.	S-tier for local inference. If you care about privacy or want to tinker, install this today.
Link	Open →	Open →	Open →	Open →