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Respan vs scalene
A side-by-side comparison of pricing, ratings, features, pros and cons.
| Overview | |||
| Description | Y Combinator-backed LLM observability gateway by Keywords AI routing traffic to 1,000+ models with evaluations. | Scalene: a high-performance, high-precision CPU, GPU, and memory profiler for Python with AI-powered optimization proposals | |
| Category | |||
| Developer | Keywords AI, Inc. | — | |
| Verified Status | No | No | |
| Last Updated | Aug 2026 | Aug 2026 | |
| Pricing | |||
| Pricing Model | Freemium | Free | |
| Free Plan | No | Yes | |
| Free Trial | No | — | |
| Open Source | No | No | |
| Capabilities | |||
| API Access | No | — | |
| Features | • Unified gateway routing to 1,000+ models • Full LLM call, tool, and agent step tracing • LLM-judge and deterministic output evaluations • Real-time cost, error, and latency monitoring • Prompt version control and optimization • Free to start; enterprise demo available | — | |
| Tags | llm-observabilityai-gatewayprompt-managementevaluationsdeveloper-tools | scalenehighperformanceprecisionmemoryprofiler | |
| Trust and Engagement | |||
| Review Count | 0 | 0 | |
| Saves | 0 | 0 | |
| Views | 4 | 39 | |
| Quality Score | 24/100 | 62/100 | |
| Website Status | Online | Online | |
| Availability | |||
| Website | respan.ai | github.com | |
| Social Links | 3 linked | 2 linked | |
| Screenshots | No | No | |
| Reviews | |||
| Pros | • Free to use | • Free to use | |
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