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| At a glance | Helicone ↗ Route model requests and inspect AI application behavior. | LiteLLM ↗ Put model access behind a shared AI gateway. | Braintrust ↗ Connect production traces to repeatable AI evaluations. |
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| Best suited for | Developers operating model-powered applications who need request visibility and routing controls. | Platform and AI engineering teams managing access to several model providers. | Teams shipping AI agents or model-powered features that need systematic quality checks. |
| Access model | Freemium | Open source | Freemium |
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| Considerations | Check gateway compatibility, payload logging and current usage limits. Decide which sensitive fields should be excluded before enabling broad capture. | Self-hosting requires secure key storage and operations. Check feature compatibility and the terms of any managed or enterprise offering. | Instrumentation and evaluation design require engineering work. Review sensitive data capture, retention and current usage limits. |
| Source | Official website ↗ | Official website ↗ | Official website ↗ |
| Current plans | Check current pricing ↗ | Check current pricing ↗ | Check current pricing ↗ |
| Listing reviewed | Oct 19, 2026 | Oct 19, 2026 | Oct 19, 2026 |
Compare products serving a similar need. This table summarizes listing information; it is not a hands-on benchmark or a rating.