by Anthropic
Claude for Open Source: 6 months of Claude Ultra free for eligible maintainers and contributors
Open-source maintainers and contributors who meet one of Anthropic's criteria can apply for six months of Claude Ultra, the $200-a-month plan, at no cost.
6 months of Claude Ultra on us
Apply to the program
About this offer
Anthropic's Claude for Open Source program gives eligible open-source maintainers and contributors six months of Claude Ultra on Anthropic. Ultra is listed at $200 per month on Claude's pricing page.
You qualify if you meet any one of the criteria: you maintain packages others build on (500 or more dependent repos, 100 or more dependent packages, or 200,000 or more combined monthly downloads), you're a listed committer or maintainer on a recognized foundation or language project, you've had 100 or more pull requests merged into repos you don't own in the last 12 months, one of your repos has had 20 or more unique external contributors in the last 12 months, or a repo you maintain has an OpenSSF criticality score of 0.4 or above. If you maintain something the ecosystem quietly depends on but don't fit the list, Anthropic asks you to apply anyway.
After six months, a previous paid plan resumes at your prior plan and rate unless you cancel; otherwise the account returns to the free plan.
Who's eligible
- Maintain packages others build on: 500 or more dependent repos, 100 or more dependent packages, or 200,000 or more combined monthly downloads
- Or be a listed committer or maintainer on a recognized foundation or language project (for example CPython or the Rust team)
- Or have authored 100 or more pull requests merged into repos you don't own in the last 12 months
- Or have a repo with 20 or more unique external contributors with merged pull requests in the last 12 months
- Or maintain a repo with an OpenSSF criticality score of 0.4 or above
- Maintainers of something the ecosystem depends on who don't fit the list are invited to apply and explain
How to redeem
- 1Go to the Claude for Open Source page
- 2Click Apply now and describe what you maintain or contribute to
- 3If accepted, Claude Ultra is applied to your account for six months
Terms and restrictions
- The free Claude Ultra subscription lasts six months
- If you had a paid plan, it resumes at your prior plan and rate unless you cancel; otherwise the account returns to the free plan
- Program terms and conditions apply
Terms are summarised from the provider's page and may change. The provider's terms always take precedence.
About Claude
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