Orbi is an open-source AI coding agent that turns a labeled GitHub Issue into a reviewed, merged PR and a tagged release.
One AI session writes the change, a separate session reviews it against the issue's acceptance criteria and can repair it, then only the approved commit merges and the release is tagged.
- 01
Issue-to-release automation: label an Issue 'ai-ready' and Orbi implements, reviews, merges, and tags a release
- 02
Two independent model sessions — a separate reviewer reads the frozen diff, can repair the branch, and re-verifies (bounded at five rounds)
- 03
Merge gate re-checks CI green, unchanged head, and current base at the moment of merge
- 04
Deterministic release state machine: freezes base, waits for green CI, bumps version, tags, and publishes
- 05
Self-hosted runner (Python 3.14) with any OpenAI-compatible API or a ChatGPT/Codex subscription login
- 06
Orbi Cloud hosted option with included model tokens and per-repo Unix user isolation
- 07
Public delivery evidence: 618+ PRs merged and 89 releases shipped on its own repository
Open Source
Self-hosting is free under AGPL-3.0 (or the Sustainable Use License), with users paying their own model provider costs. Orbi Cloud offers the first 3 merged deliveries free (no credit card), then Solo at US$29/month with 400M tokens and Pro at US$79/month with 1.2B tokens; when quota runs out, deliveries pause with no overage billing.
Best for
Teams and solo developers who want unattended, GitHub-native automation from issue to tagged release and are comfortable self-hosting or paying a flat monthly Cloud fee.
Not ideal for
Those wanting a fully managed, zero-setup tool with no GitHub dependency, or users who need Claude Code support (Orbi's engine does not support it).
Orbi offers a genuinely autonomous, GitHub-native path from issue to tagged release with a credible independent-review and merge-gate design, backed by transparent, measured cost data and a free self-hosted option. The trade-offs are a non-trivial self-hosting setup (Python 3.14, systemd/launchd, model provider config), no Claude Code support, and Cloud pricing that, while flat, still requires trusting its token allowances.
Orbi relicensed to AGPL-3.0 (or SUL) as of v0.5.44 on September 24, 2026, after briefly using the Sustainable Use License from Sep 4. Cost transparency data published Oct 5, 2026 (169 merged deliveries, median $0.082 off-peak). Blog posts through Oct 6, 2026 cover the Pi agent harness and DeepSeek cost analysis.
As of
Is Orbi free?+
Yes - Orbi is Open Source. Self-hosting is free under AGPL-3.0 (or the Sustainable Use License), with users paying their own model provider costs. Orbi Cloud offers the first 3 merged deliveries free (no credit card), then Solo at US$29/month with 400M tokens and Pro at US$79/month with 1.2B tokens; when quota runs out, deliveries pause with no overage billing.
Is Orbi open source?+
Yes - Orbi is open source. Self-hosting is free under AGPL-3.0 (or the Sustainable Use License), with users paying their own model provider costs. Orbi Cloud offers the first 3 merged deliveries free (no credit card), then Solo at US$29/month with 400M tokens and Pro at US$79/month with 1.2B tokens; when quota runs out, deliveries pause with no overage billing.
Who is Orbi best for?+
Teams and solo developers who want unattended, GitHub-native automation from issue to tagged release and are comfortable self-hosting or paying a flat monthly Cloud fee.
Who is Orbi not ideal for?+
Those wanting a fully managed, zero-setup tool with no GitHub dependency, or users who need Claude Code support (Orbi's engine does not support it).
What are the best Orbi alternatives?+
The closest Orbi alternatives on ai.dosa.dev are Jules, OpenHands, SWE-agent - all listed under Autonomous & Async Agents.
Who makes Orbi?+
Orbi is developed by orbi-build (Lawrence Liu). It is listed in the Autonomous & Async Agents category on ai.dosa.dev.
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