Tools
Braintrust vs PromptLayer
Braintrust or PromptLayer? Their plans monthly and yearly, the capabilities their makers state, security and latest updates, side by side — read from the makers' own pages.
In short
- Both: Self-hosted, API, Official SDKs, Traces and evaluates
- Only Braintrust states: Choice of models
- Only PromptLayer states: Builds agents and workflows
Braintrust
Braintrust helps teams trace AI applications, evaluate outputs, find production issues, and improve agents.
Plans
Starter
- $0 / month
- + $4/GB
- + $2.50/1k
- $10 model credits/month included
- 1 GB processed data/month included
- 10K scores/month included
- 14-day retention
- Unlimited users, projects, datasets, playgrounds, and experiments
Pro
- $249 / month
- + $3/GB
- + $1.50/1k
- + $0.50/GB/mo
- $100 model credits/month included
- 5 GB processed data/month included
- 50K scores/month included
- 30-day retention
- Custom charts, environments, priority support, and RBAC
- Unlimited users, projects, datasets, playgrounds, and experiments
Enterprise
Price on request
- Custom data retention and export
- RBAC and premium support
- On-prem or hosted deployment for high-volume or privacy-sensitive data
Prices checked 2026-09-26 on the maker’s page.
Capabilities
- Choice of models — “compare prompts and models side-by-side” source
- Self-hosted — “Deploy Brainstore data plane on your own infrastructure” source
- API — “You get a unified API across OpenAI, Anthropic, Google, AWS, and other providers, with automatic caching and observability on every request.” source
- Official SDKs — “Native SDKs SDKs for Python, TypeScript, Go, Ruby, C#, and more.” source
- Traces and evaluates — “Full visibility into every agent interaction.” source
Security
- SOC 2 Type II — “SOC 2 Type II - May 5 - Aug 5, 2025” source
- SOC 2 — “SOC 2 Type II - May 5 - Aug 5, 2025” source
- GDPR — “Data Processing Agreement (DPA) - Enterprise” source
- HIPAA — “One-page white paper on Braintrust and HIPAA compliance.” source
Latest updates
- September 2026 (v0.21.0+)
Braintrust-hosted deployments map OpenInference traces to structured data; the bt CLI supports local JavaScript span plugins.
- August 2026
Monitoring views became dashboards; permissions now control access to organization AI providers; coding-agent tracing runs through the bt CLI.
- July 2026
Experiment comparisons support pairwise scoring; datasets can store references to full traces and show them in a Trace viewer.
PromptLayer
PromptLayer helps AI teams manage prompts, run evaluations, trace agents, and monitor LLM application usage.
Plans
Free
Free
- 5 users
- 2.5k/month requests
- 1 workspace
- 250/month Eval Cell Executions
- 10MB max per Dataset
Pro
- $49 per month
- Same limits as in Free, plus
- Unlimited Playgrounds
- Unlimited Workspaces
- 150MB max per Dataset
Team
- $500 per month
- 25 Users
- 100k+/month Requests
- 7.5k+/month Eval Cell Executions
- 1GB max per Dataset
Enterprise
Price on request
- Custom limits on everything
- Role Based Access Controls
- Deployment Approvals
- HIPAA with BAA
- Flexible Hosting Options
- Dedicated Support
Prices checked 2026-09-26 on the maker’s page.
Capabilities
- Self-hosted — “Enterprise Self-hosted, managed single-tenant” source
- API — “PromptLayer provides versioned prompts, programmatic APIs, webhooks, and evaluation workflows for controlled CI/CD releases.” source
- Official SDKs — “Treat prompt versions like deployable software artifacts: retrieve them through an SDK or REST API, run regression evaluations when they change, and promote release labels only after checks pass.” source
- Builds agents and workflows — “Build, trace, and improve agent workflows with prompts, tool calls, evaluations, and logs in one place.” source
- Traces and evaluates — “Connect production traces to prompt versions, inspect failures, and track cost, latency, and token usage.” source
Latest updates
- Deployment 1
General performance and stability improvements
- Deployment 1
Structured Search accepts Ctrl+Enter; FOR_LOOP column variable mappings are preserved; multi-value badges handle overflow and text wrapping.
- Deployment 1
Added Gemini 3.8 Flash support across Google AI Studio, Vertex AI, and OpenRouter; updated GPT-5.6 Sol and Sol Pro pricing.