Agenta vs sizeless: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Agenta and sizeless — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Agenta
Agenta (Agenta-AI)
Open-source LLMOps platform for prompt management, evaluation, debugging, and observability of production LLM applications.
Key features
- Prompt Management: Web UI and tooling to create, edit, version, and organize prompts and prompt components, enabling reproducible prompt engineering workflows.
- Evaluation Pipelines: Automated evaluation workflows to run tests, benchmarks, and metrics across prompts and model configurations for quantitative comparison.
- Debugging Tools: Interactive debugging capabilities to inspect model inputs/outputs, trace failures, and iterate on prompt logic and control flows.
- Observability Dashboards: Runtime dashboards and logs to monitor model responses, latency, error rates, and behavioral metrics in deployed environments.
- Environment Deployment: Ability to deploy prompts and configurations to multiple environments (e.g., staging, production) for safe rollout and testing.
- Integrations & Extensibility: Open-source extensible architecture that integrates with external LLM providers and allows customization and plugin of evaluation or monitoring components.
- Prompt engineering and management
- Automated evaluation and benchmarks
- Debugging tools for LLM apps
- Observability and monitoring for agents
- Cloud-hosted and self-hosted deployment options
- Team management and enterprise support (SSO)
- Prompt creation and management via web UI
- Prompt versioning and deployment to environments
- Evaluation workflows for testing and benchmarking prompts
- Observability and monitoring of LLM application behavior
- Debugging tools for analyzing model outputs and failures
- Support for full LLM development lifecycle (design, test, deploy, monitor)
- Self-hostable open-source codebase (GitHub repository available)
- Collaboration features for engineering and product teams
Best for
- Prompt Iteration: Rapidly prototype and version prompts in the web UI, run evaluations, and promote stable prompts from staging to production.
- A/B Prompt Testing: Compare different prompt variants with automated evaluation pipelines to select the best-performing prompt for production.
- Production Monitoring: Monitor deployed prompts for drift, latency spikes, and degradation in output quality using observability dashboards and alerts.
- Regression Testing: Create test suites that run across model updates to detect regressions in expected behavior before deployment.
- Debugging Model Failures: Inspect individual request/response traces to identify why a model produced an incorrect or unsafe output and iterate on prompt fixes.
- Team Collaboration: Coordinate engineering and product teams around shared prompt repositories, evaluations, and deployment workflows to maintain reliability.
- Developing and iterating reliable LLM-powered applications
- Monitoring and debugging production LLM agents
- Running evaluations and comparisons of prompt variants
- Onboarding teams to LLMOps workflows with team/SSO support
- Designing and iterating prompts for production LLM apps
- Evaluating and benchmarking model outputs across prompts and models
- Monitoring LLM application behavior and performance in production
- Debugging unexpected or incorrect model responses
- Versioning and deploying prompt configurations to staged environments
- Enabling cross-functional teams to collaborate on LLM application development
sizeless
sizeless
Turns a smartphone video of an open trench into a centimetre-accurate 3D point cloud, CAD as-built plan and GIS-ready digital twin of buried utilities.
Key features
- Smartphone capture: Field crews record an open trench with a standard iPhone Pro — no specialist scanning hardware and no separate surveying appointment
- Centimetre-accurate point clouds: Reconstruction algorithms developed at ETH Zurich build a high-resolution 3D point cloud of the excavation from the video alone
- Standards-compliant CAD output: Generates as-built plans in DWG and DXF, with couplings and pipe runs identified and measurements simplified
- 3D digital twin and GIS export: Produces a model of the pipe route including building entries that drops into existing GIS systems
- Works without GPS: Captures basement sections and building entry points where GNSS-based surveying fails
- Immediate backfilling: Because capture takes minutes, trenches close right after filming instead of waiting on a survey crew
- Documentation in about 72 hours: Complete records arrive weeks earlier than conventional surveying, enabling prompt connection billing
- Third-party utility capture: Records crossing utilities and as-laid geometry as unbroken 3D evidence, replacing hand sketches
Best for
- A utility network operator documenting residential service connections without booking a surveyor for every site
- A contractor closing a trench the same day instead of leaving it open pending a survey appointment
- Capturing a building entry point in a basement where GPS-based surveying cannot get a fix
- A district heating project producing as-built DWG plans for regulatory sign-off
- Spotting a laying error in the 3D point cloud before backfilling, while the fix is still cheap
- Feeding as-built pipe geometry into a GIS system for long-term network maintenance planning