Side by side
Giskard vs W&B Weave
Both stand on ai agent evaluation tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Open source APILinuxSelf-hosted+1
Visit Giskard 
Free plan Open source APIiPhoneLinux+4
W&B Weave brings tracing, evaluation, monitoring, and safety scoring together for production AI agents. The free plan has a defined ingestion allowance, while higher-volume use can add ingestion charges or require another plan.
Visit W&B WeaveThe facts
| Giskard | W&B Weave | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Yes | Yes |
| Runs on | API, Linux, Self-hosted, Web | API, iPhone, Linux, Mac, Self-hosted, Web, Windows |
| Lowest paid plan | Free or on request | Pro: $60 a month |
| Plans published | 4 | 3 |
| Maker | Not published | Not published |
| Website | giskard.ai | site.wandb.ai |
| On ai agent evaluation tools | #3 of 28 | #7 of 28 |
Giskard: what it does well
W&B Weave: what it does well
- Traces organize agent sessions, turns, tools, and sub-agents.
- Evaluation comparisons help identify regressions before deployment.
- Safety and quality scorers cover several evaluation dimensions.
- Works with Python, TypeScript, and OpenTelemetry traces.
- Free plan includes 1 GB monthly ingestion and 5 GB storage.
What to know first
- Free ingestion is limited to 1 GB per month.
- Pro starts at $60 a month.
- Additional Pro ingestion costs $0.10 per MB.
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