kitio.aiWeights & Biases vs Respan
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Weights & Biases starts at $60/mo and Respan starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Experiment tracking
- Hyperparameter sweeps
- Model registry
- Weave LLM tracing
- Reports
- One API for 1,000+ models
- Automatic model fallbacks
- Response caching
- Agent tracing
- LLM-as-judge evaluators
- Red-team testing
| Feature | Weights & Biases | Respan |
|---|---|---|
| Best for | Experiment tracking and LLM observability, now part of CoreWeave | LLM gateway with tracing, monitoring and automated evals |
| Category | Models & APIs | Models & APIs |
| Pricing model | Freemium | Freemium |
| Starting price | $60/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | CoreWeave | Respan |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Weights & Biases starts at $60/mo and Respan starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- Experiment tracking for individuals
- Limited storage
Pro
$60/mo
- Starting price
- Team collaboration features
- Higher usage limits
Enterprise
Contact sales
- SSO and advanced security
- Dedicated support
3 plans
Free
Free
- 100k logs
- 1k scores
- 5 datasets
- 2 evaluators
Team
$199/mo billed yearly
- Unlimited datasets and evaluators
- Unlimited prompts
- SOC 2 report
- Private Slack channel
Enterprise
Contact sales
- Custom packages
- Custom SLAs
- Dedicated support engineer
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Weights & Biases
- Industry-standard experiment tracking
- Polished dashboards
- Covers training and LLM apps
- Pricing jumps for larger teams
- Weave ingestion billed by size
- Sign-in moved to CoreWeave
Respan
- Routing and evals in one product
- Generous free tier with 100k logs
- Open-source gateway
- Team plan is billed yearly
- Extra logs and seats cost more
- HIPAA compliance is a paid add-on
Which one should you choose?
Choose Weights & Biases if you want:
- Industry-standard experiment tracking
- Polished dashboards
- Covers training and LLM apps
Watch out: pricing jumps for larger teams.
Choose Respan if you want:
- Routing and evals in one product
- Generous free tier with 100k logs
- Open-source gateway
Watch out: team plan is billed yearly.
Weights & Biases vs Respan FAQ
What is the difference between Weights & Biases and Respan?
Weights & Biases: Experiment tracking and LLM observability, now part of CoreWeave. Respan: LLM gateway with tracing, monitoring and automated evals. Both are models & apis tools.
Is Weights & Biases or Respan cheaper?
Weights & Biases starts at $60/mo and Respan starts at See pricing page. Check both pricing pages for current plans.
Do Weights & Biases and Respan have free plans?
Weights & Biases: Yes. Respan: Yes.
Who makes Weights & Biases?
Weights & Biases is made by CoreWeave, based in United States.
Who makes Respan?
Respan is made by Respan.
Which should I choose, Weights & Biases or Respan?
Choose Weights & Biases if you value industry-standard experiment tracking and polished dashboards. Choose Respan if you value routing and evals in one product and generous free tier with 100k logs.