它们的增长率如何比较？

Langtail 的月度环比增长率为 +10%；PromptLayer 为 -4.6%。

价格如何比较？

Langtail: 免费增值，付费。Free tier of $0/month with unlimited users, 2 prompts or assistants, 1,000 logs per month, and 30 days of data retention. Pro is $99/month for a single user with 20 prompts, unlimited logs, 90-day retention. Team is $499/month for 10 users with unlimited prompts, unlimited logs, one-year retention, and Radars & Alerts. Enterprise is custom and adds the AI Firewall, self-hosting, and dedicated support. Prices exclude VAT. PromptLayer: 免费试用，定价请咨询。PromptLayer 提供免费套餐和三档付费套餐。免费版为每月 0 美元，含 5 个用户、每月 2.5k 次请求、1 个工作区、250 次评估单元执行和 10MB 数据集。Pro 为每月 49 美元，增加不限次数的 Playground、不限工作区和 150MB 数据集。Team 为每月 500 美元，含 25 个用户、每月 10 万次以上请求、7.5k 次以上评估单元执行和 1GB 数据集。Enterprise 提供自定义上限，并支持 RBAC、部署审批、HIPAA（含 BAA）、自托管或欧盟托管以及专属支持。超量部分按交易计费（Pro 约每笔 0.003 美元，Team 约每笔 0.002 美元）。

Langtail 和 PromptLayer 的替代方案有哪些？

相关分类中的其他工具包括 DeepSeek, KaneAI, Dify, Weights & Biases（CoreWeave Forge），Arize AI。

Langtail vs PromptLayer — 流量对比 (4213 vs 8.59万)、价格与选型结论

Open AI Tools

Langtail vs PromptLayer — 流量对比 (4213 vs 8.59万)、价格与选型结论 | Open AI Tools

并排流量和规格矩阵

维度 / 指标	Langtail	PromptLayer
官方域名	langtail.com	promptlayer.com
定价模式	免费增值，付费	免费试用，定价请咨询
月访问量	4213 (4,213)	8.59万 (85,899)
月度环比流量变化	+382 (+10%)	-4176 (-4.6%)
主要市场与份额	🇺🇸 美国 (51.2%)	🇺🇸 美国 (10.9%)
直接访问 / 月	1680	1.41万
用户评分	4.4	4.5
支持的平台	网站	网站

Langtail

Langtail is a prompt management platform for product teams that lets engineers, PMs, and domain experts build, test, version, and deploy LLM prompts through a spreadsheet-like interface, with observability logs, evaluation runs, and an AI firewall for blocking prompt injection and unsafe outputs. It works across OpenAI, Anthropic, Gemini, Mistral, and other major providers.

Spreadsheet-style prompt editor

Build, test, and version prompts in a table-based editor that anyone comfortable with spreadsheets can use.

Automated evaluation and test runs

Add natural-language assertions, pattern matching, or custom code checks and run them over datasets to catch regressions.

Request logging and observability

Trace every request and response, inspect latency and cost, and diagnose why an LLM answered the way it did.

AI Firewall and safety checks

One-click AI Firewall blocks prompt injection, denial-of-service attempts, and information leaks with customisable content filtering and alerts.