Weights & Biases for Startups
Up to $3,000 in W&B credits for early AI startups, but only reachable through Microsoft for Startups or Google Cloud Startup Perks rather than a direct application.
Weights & Biases for Startups offers Up to $3,000 in credits (partner-gated) to bootstrapped, pre-seed, seed startups with a VC or accelerator referral. Review takes 1–14 business days.
About
Weights & Biases is the default experiment-tracking and model-registry layer for teams training or fine-tuning models, and Weave is its LLM evaluation and tracing product. CoreWeave completed its acquisition of W&B in May 2025, so the offer now sits inside a GPU-cloud parent rather than an independent tooling company.
The important structural detail: there is no standalone W&B startup application. The credits are distributed as a partner benefit, so you qualify for Microsoft for Startups Founders Hub or Google Cloud Startup Perks first and redeem the W&B offer from inside that program's marketplace. The Microsoft route is new-customers-only. The Google Cloud route has surfaced as a Weave free trial rather than a credit grant, so the exact benefit depends on which door you come through and when.
Tiers
- New W&B customer
- Active member of a qualifying partner program
- Pre-seed to Series A
Eligibility
- AI or ML product actively training, fine-tuning, or evaluating models
- New Weights & Biases customer
- Accepted into Microsoft for Startups Founders Hub or Google Cloud Startup Perks
- Pre-seed through Series A
- Existing W&B paying customers (the Microsoft offer is new-customers-only)
- Teams not in a qualifying partner program
- Series B and later
How to apply
- 1Get into a qualifying partner programApply to Microsoft for Startups Founders Hub or Google Cloud Startup Perks. This is the real gate; the W&B step is trivial afterwards.www.microsoft.com/en-us/startups ↗
- 2Open the partner benefits catalogFind the Weights & Biases offer in the partner marketplace rather than on wandb.ai.
- 3Redeem against a new W&B accountUse an organization that has never been a paying W&B customer, or the Microsoft offer will not apply.
- 4Confirm what you actually gotCheck whether the benefit landed as credits or as a Weave trial, because the two partner routes have differed.
What else you get
- Experiment tracking and model registry
- Weave for LLM tracing and evaluation
- Team collaboration and report sharing
What credits cover (and don't)
- W&B Models
- W&B Weave
- Experiment tracking
- Model registry
- CoreWeave GPU compute (priced separately)
- Dedicated or self-hosted deployments
Tactical tips
- Tip 1.Do not spend time hunting for a direct application form. There is not one; the partner program is the only door.
- Tip 2.Sequence it correctly: apply to Microsoft for Startups Founders Hub or Google Cloud Startup Perks first, because both take longer to clear than the W&B redemption.
- Tip 3.Redeem with a fresh W&B organization. A trial you already started can disqualify you from the new-customer condition.
- Tip 4.The credits cover tooling, not GPUs. Budget compute separately through NVIDIA Inception, Modal, or your cloud program.
- Tip 5.Since the CoreWeave acquisition, expect tighter coupling with CoreWeave compute. Worth asking about if you are choosing a GPU provider at the same time.
Common rejection reasons
- Already a paying W&B customer
- Not accepted into a qualifying partner program
- No active ML or LLM workload to justify the tooling
Frequently asked about Weights & Biases for Startups
Is Weights & Biases for Startups free to apply?
Yes. Applying to Weights & Biases for Startups does not cost anything and does not require giving up equity. Some programs require a payment method on file that activates only after credits are consumed or expire, check the program detail page for specifics.
How long does Weights & Biases for Startups take to review applications?
Processing times are shown on the program detail page. Most programs reply within 1–3 weeks. Self-serve tiers (like AWS Activate Founders) can approve in 2–7 days; partner-referred tiers (like AWS Activate Portfolio) usually take 5–10 days.
Can I combine Weights & Biases for Startups with other startup programs?
Most programs stack. The "Stacks well with" section on each detail page lists commonly combined programs. A few important exceptions: if you already claimed AWS credits via Brex or Mercury, your direct AWS Activate amount may be reduced.
What is the most common reason applications to Weights & Biases (CoreWeave) get rejected?
The top rejection reasons are (1) using a personal Gmail/Outlook address instead of a company domain, (2) having a thin or placeholder website, and (3) mismatched information between the application and Crunchbase/Pitchbook. The tips section on the program page details program-specific factors.
Related programs
Anthropic Startup Program
$1K–$25K+ in Claude API credits plus priority rate limits for startups building with Claude.
OpenAI for Startups
No single flagship program, credits come via Ramp ($2.5K), Researcher Access ($1K), or invitation-only VC paths.
NVIDIA Inception
Free program for AI/ML startups, preferred hardware pricing, VC Alliance exposure, unlocks downstream credits.