Side by side
Manifest vs TensorZero
Both stand on llm gateways. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Open source APILinuxSelf-hosted+1
Manifest offers both cloud and self-hosted gateway options, with routing, fallback, repair, and spending visibility. The Cloud Free request cap and inability to reach local machine models are important constraints for cloud users.
Visit Manifest
Free plan APILinuxSelf-hosted+1
TensorZero brings gateway, observability, and experimentation capabilities together in a self-hosted, open-source stack. Its archived, unmaintained status is a substantial consideration before choosing it.
Visit TensorZeroThe facts
| Manifest | TensorZero | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Yes | Not published |
| Runs on | API, Linux, Self-hosted, Web | API, Linux, Self-hosted, Web |
| Lowest paid plan | Pro: $19 a month | Free or on request |
| Plans published | 3 | 1 |
| Maker | Not published | Not published |
| Website | manifest.build | tensorzero.com |
| On llm gateways | #2 of 33 | #6 of 33 |
Manifest: what it does well
- One endpoint compatible with OpenAI and Anthropic
- Retries through another provider when one goes down
- Autofix repairs and resends malformed requests
- Self-hosted gateway works offline and needs no account
- Free plan includes unlimited self-hosted use
What to know first
- Cloud Free is limited to 10,000 requests monthly
- Cloud Free cannot reach local models on the user's machine
- Cloud recordings are retained for seven days on Free
TensorZero: what it does well
- Unified API for documented model providers
- Supports fallbacks, retries, and traffic routing
- Stores data in a user-configured database
- Deploys with Docker or Kubernetes and Helm
- Free under the Apache 2.0 License
What to know first
- No longer maintained
- GitHub repository is archived and read-only
- Self-hosted deployment is required
Alternatives to Manifest Alternatives to TensorZero The whole list