PromptLayer alternatives

At a glance

We list 9 other LLM observability tools as alternatives to PromptLayer: Braintrust, Confident AI, Helicone, Langfuse, LangSmith, Opik, Portkey, Traceloop and W&B Weave.
Braintrust, Confident AI, Langfuse, LangSmith, Opik, Portkey and Traceloop have a free plan.
Braintrust and W&B Weave work with Claude Code, as PromptLayer does.

From each tool's own website and from published reviews. Each tool's page says when its facts were checked.

9 alternatives

Listed alphabetically. A tool is ranked by its reviews once it has 3.

Braintrust
The AI observability platform for tracing production, running evals, and catching regressions.
No reviews yet
Choose it over PromptLayer for: integration with OpenAI, Anthropic or LangChain.
Free plan
Yes
Paid plans from
Pro, $249 per month (as of November 14, 2026)
Integrations shared with PromptLayer
Claude Code
Main features
Evals, Loop agent, Pattern discovery
Security and compliance
SOC 2, GDPR, HIPAA, SSO
Compare with PromptLayer
Be the first to review
Confident AI
The AI quality platform for enterprise teams to standardize AI evals and observability across the org.
No reviews yet
Choose it over PromptLayer for: integration with OpenAI Agents, LangChain or LlamaIndex.
Free plan
Yes
Paid plans from
Starter, $200 per organization per month (as of November 14, 2026)
Integrations shared with PromptLayer
None in common
Main features
LLM evaluation, LLM observability, Voice AI evaluation
Security and compliance
SOC 2, GDPR, HIPAA, SSO
Compare with PromptLayer
Be the first to review
Helicone
Routing and monitoring for reliable AI apps.
No reviews yet
Choose it over PromptLayer for: integration with OpenAI, Anthropic or Azure.
Paid plans from
Pro, $79 per month (as of November 14, 2026)
Free trial
7 days
Integrations shared with PromptLayer
None in common
Main features
Request monitoring, Sessions, Prompt management
Security and compliance
HIPAA, SSO
Compare with PromptLayer
Be the first to review
Langfuse
Trace, evaluate, and improve AI agents with one open platform.
No reviews yet
Choose it over PromptLayer for: a lower starting price; integration with OpenAI, LangChain or LiteLLM; ISO 27001.
Free plan
Yes
Paid plans from
Core, $29 per month (as of November 14, 2026)
Integrations shared with PromptLayer
None in common
Main features
Evaluation, Prompt management, AI gateway
Security and compliance
SOC 2, ISO 27001, GDPR, HIPAA, SSO
Compare with PromptLayer
Be the first to review
LangSmith
Complete AI agent and LLM observability platform with tracing and real-time monitoring.
No reviews yet
Choose it over PromptLayer for: integration with OpenAI SDK, Anthropic SDK or Vercel AI SDK.
Free plan
Yes
Paid plans from
Plus, $39 per seat per month, then pay as you go (as of November 14, 2026)
Integrations shared with PromptLayer
None in common
Main features
Agent tracing, Production monitoring, SmithDB trace search
Security and compliance
SSO
Compare with PromptLayer
Be the first to review
Opik
An end-to-end AI observability platform to test, ship, and improve agentic systems.
No reviews yet
Choose it over PromptLayer for: a lower starting price; integration with LangChain, OpenAI or CrewAI; ISO 27001.
Free plan
Yes
Paid plans from
Pro Cloud, $19 per month (as of November 14, 2026)
Free trial
Yes
Integrations shared with PromptLayer
None in common
Main features
LLM-as-a-judge evaluation, Production monitoring, Test suites
Security and compliance
SOC 2, ISO 27001, GDPR, HIPAA, SSO
Compare with PromptLayer
Be the first to review
Portkey
AI gateway and observability for AI teams.
No reviews yet
Choose it over PromptLayer for: integration with OpenAI, Anthropic or MongoDB; ISO 27001.
Free plan
Yes
Paid plans from
Production, $49 per month (as of November 14, 2026)
Integrations shared with PromptLayer
None in common
Main features
Observability, Prompt management, MCP gateway
Security and compliance
SOC 2, ISO 27001, GDPR, HIPAA, SSO
Compare with PromptLayer
Be the first to review
Traceloop
Traceloop turns evals and monitors into a continuous feedback loop so every release gets better.
No reviews yet
Choose it over PromptLayer for: integration with OpenAI, Anthropic or LangChain.
Free plan
Yes
Plans
Free: $0 (as of November 14, 2026)
Free trial
14 days
Integrations shared with PromptLayer
None in common
Main features
Built-in quality checks, Evaluations in pipeline, Monitoring dashboard
Security and compliance
SOC 2, HIPAA
Compare with PromptLayer
Be the first to review
W&B Weave
Observability and continuous improvement for production agents.
No reviews yet
Choose it over PromptLayer for: integration with Slack.
Free trial
Yes
Integrations shared with PromptLayer
Claude Code
Main features
Agent-native tracing, Behavior monitoring, Flexible evaluation framework
Security and compliance
HIPAA, SSO
Compare with PromptLayer
Be the first to review

People who moved on from PromptLayer

From reviews of other tools that say they used PromptLayer before.

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At a glance

We list 9 other LLM observability tools as alternatives to PromptLayer: Braintrust, Confident AI, Helicone, Langfuse, LangSmith, Opik, Portkey, Traceloop and W&B Weave.

Braintrust, Confident AI, Langfuse, LangSmith, Opik, Portkey and Traceloop have a free plan.

Braintrust and W&B Weave work with Claude Code, as PromptLayer does.

From each tool's own website and from published reviews. Each tool's page says when its facts were checked.