We've compared 2 tools across pricing, features, ratings, and reviews to help you make an informed decision. No paid placements — just facts.
Compare different tools →| Verified | Verified |
| Founded | 2023 | 2012 |
| HQ | — | San Francisco, CA |
| Team Size | Startups, Enterprise | 201-500 |
| Platforms | — | WebSelf-hosted |
| Top Integrations | SlackEmailWebhooksCSV import | GitHubSlackJiraLinear |
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| Description | Respan (formerly Keywords AI) is a unified LLM engineering platform that routes traffic through a single gateway reaching 1,000+ models, then captures every call as a trace while tracking spend, errors, and latency and scoring outputs with evals. It's built for AI/LLM engineers and product teams running LLM apps and agents in production who need one layer for routing, observability, and evaluation instead of stitching separate tools together. Its main differentiator is combining an OpenAI-compatible gateway (with fallbacks, caching, and budgets) with deep span-level tracing and composable evaluators in the same product. | Sentry is the application monitoring platform loved by over 4 million developers and 100,000 organizations. From error tracking to performance monitoring and session replay, Sentry helps teams resolve issues faster and improve code quality. |
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