PromptLayer
The collaboration layer for AI engineering teams
Ranked #8 in Best LLM evaluation tools, and on 2 more rankings.
PromptLayer is an AI engineering platform combining a prompt registry with evaluations and observability. It enables teams to version, test, deploy, and monitor prompts effectively.
At a glance
| Best for | AI engineering teams |
From PromptLayer's own website.
Company facts
| Social profiles | LinkedIn, X, GitHub |
Facilities and features
Its website also mentions:
- SOC 2
- GDPR
What stands out
The AI tool allows non-technical domain experts to edit prompts directly without code.
“Update and test prompts directly from the dashboard. Include non-technical domain experts”PromptLayer, own website
The AI tool connects production logs to prompt versions for precise performance tracking.
“Track every request against the exact prompt version that produced it, then compare quality, usage, cost, and latency by version.”PromptLayer, own website
How it ranks
PromptLayer is ranked 8th of 10 in Best LLM evaluation tools (Lister Score 82.0), 8th of 10 in Best LLM observability tools (Lister Score 82.0) and 10th of 10 in Self-hosted LLM observability tools (Lister Score 82.0).
#8 in Best LLM evaluation tools · Lister Score 82.0
The AI tool allows non-technical domain experts to edit prompts directly without code.
How the score is made up: fit to this ranking's criteria 40; evidence on its own site 20; how complete its published information is 14; buying information on its own site 8.
“PromptLayer is an AI engineering platform that combines a prompt registry and visual prompt CMS with LLM evaluations, observability, and agent tracing.”PromptLayer, own website
| Rank | Best LLM evaluation tools | Score |
|---|---|---|
| 1 | Giskard | 96.0 |
| 2 | Arize AI | 88.0 |
| 3 | Fiddler AI | 88.0 |
| 4 | Promptfoo | 88.0 |
| 5 | Athina | 86.0 |
| 6 | Kiln AI | 82.0 |
| 7 | MLflow AI Platform | 82.0 |
| 8 | PromptLayer | 82.0 |
| 9 | Babelscape | 80.0 |
| 10 | TruLens | 78.0 |
#8 in Best LLM observability tools · Lister Score 82.0
The AI tool allows non-technical domain experts to edit prompts directly without code.
How the score is made up: fit to this ranking's criteria 40; evidence on its own site 20; how complete its published information is 14; buying information on its own site 8.
“PromptLayer is an AI engineering platform that combines a prompt registry and visual prompt CMS with LLM evaluations, observability, and agent tracing.”PromptLayer, own website
| Rank | Best LLM observability tools | Score |
|---|---|---|
| 1 | LangFuse | 92.0 |
| 2 | AgentOps | 88.0 |
| 3 | Arize AI | 88.0 |
| 4 | Fiddler AI | 88.0 |
| 5 | Weights and Biases | 88.0 |
| 6 | HoneyHive | 84.0 |
| 7 | MLflow AI Platform | 82.0 |
| 8 | PromptLayer | 82.0 |
| 9 | Dynamiq | 80.0 |
| 10 | FloTorch | 76.0 |
#10 in Self-hosted LLM observability tools · Lister Score 82.0
The AI tool allows non-technical domain experts to edit prompts directly without code.
How the score is made up: fit to this ranking's criteria 40; evidence on its own site 20; how complete its published information is 14; buying information on its own site 8.
“PromptLayer is an AI engineering platform that combines a prompt registry and visual prompt CMS with LLM evaluations, observability, and agent tracing.”PromptLayer, own website
“Enterprise customers have the option of self-hosted on GCP, AWS, and Azure, Cloud-hosted in EU, or Cloud-hosted single-tenant.”PromptLayer, own website
| Rank | Self-hosted LLM observability tools | Score |
|---|---|---|
| 1 | LangFuse | 92.0 |
| 2 | Morph | 92.0 |
| 3 | Manifest | 90.0 |
| 4 | Shakudo | 90.0 |
| 5 | Entelligence AI | 88.0 |
| 6 | Fiddler AI | 88.0 |
| 7 | axem | 84.0 |
| 8 | Iterate.ai | 84.0 |
| 9 | MLflow AI Platform | 82.0 |
| 10 | PromptLayer | 82.0 |
Frequently asked questions
How does PromptLayer rank on Lister?
PromptLayer is ranked 8th of 10 in Best LLM evaluation tools (Lister Score 82.0), 8th of 10 in Best LLM observability tools (Lister Score 82.0) and 10th of 10 in Self-hosted LLM observability tools (Lister Score 82.0).