Giga alternatives
TL;DR: 12 companies doing similar work to Giga in B2B, ranked by how closely they match what Giga actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with Giga. They are scored on how closely their own description overlaps with Giga's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Giga?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Eivod | — | Summer 2007 | 51 | Inactive |
| Stackq | — | Summer 2009 | — | Inactive |
| BitSample | — | Winter 2008 | — | Inactive |
| Sendbird | The AI agent that doesn’t just support, it delights. | Winter 2016 | 300 | Active |
| ReadMe | Beautiful, personalized, interactive developer hubs | Winter 2015 | 52 | Active |
| Hamming AI | Complete QA platform for voice agents | Summer 2024 | 10 | Active |
| InsForge (InstaCloud) | The agent-native serverless cloud | Spring 2026 | 6 | Active |
| TesterArmy | Test your app with AI, catch bugs before users do | Spring 2026 | 6 | Active |
| Linzumi | Team chat to command all your company's coding agents | Spring 2026 | 3 | Active |
| 21st | UI building blocks for the agentic internet | Winter 2026 | 3 | Active |
| Probe | Agent-Native Incident Management | Spring 2026 | 3 | Active |
| OpenProse | An open-source operating system for reliable long-running agents | Spring 2026 | 3 | Active |
Is Giga still active?
Giga is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Giga. They are then ranked on how closely their own description overlaps with Giga's, so the closest matches come first rather than whoever happens to share a tag.