AI assistants and search
Blackbox AI alternatives
2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.
The projects
lm-sys/FastChat★39,517 GitHub starsApache-2.0 licenceAn open platform that serves LLMs with an OpenAI-compatible API, chat UI, and multi-model support.Open on GitHub ↗arc53/DocsGPT★18,198 GitHub starsMIT licencePrivate AI platform for enterprise agents, document analysis, multi-model support, and API connectivity.Open on GitHub ↗
What you give up either way
- Dedicated single-tenant GPU infrastructure and the measured high-throughput (Nemotron 3 Ultra) performance
- Forward-deployed engineering and enterprise implementation services
- Enterprise SLAs, audits (SOC2/ISO) and contractual zero-retention guarantees
- Catalog of 300+ models behind one commercial bill and volume-committed pricing
An open-source project doing the core job proves a replacement is possible. It does not prove it matches Blackbox AI, and it does not prove anyone has run it for a month. How we decide.