Up to $20,000 of Claude API usage over 6 months. Anthropic’s own math says that’s roughly 20 billion input tokens or about 4 billion output tokens at Haiku 4.5 pricing, or roughly 4 billion input tokens or about 800 million output tokens at Opus 4.5 pricing. In practice, that can cover anything from large-scale literature extraction and structured summaries to repeated analysis passes across big text corpora. If you mix models (Haiku for bulk, Sonnet/Opus for the hard parts), the credits usually go much further than teams expect.

No. Anthropic awards credits directly to your organizational API account.

These program credits last for 6 months from award.

Yes. If you have Anthropic credits you won’t use before they expire, you can list them on AI Credit Mart and sell them at up to 70% of face value. Companies regularly list surplus credits from startup programs and enterprise agreements.

AI Credit Mart has discounted Anthropic credits available from companies with surplus allocations. Prices are typically 30-70% below retail.

There’s no auto-billing: when credits run out, API access stops unless you add a payment method.

You get access to Anthropic’s standard model suite via the API: Claude Opus 4.5, Sonnet 4.5, Haiku 4.5, plus legacy Opus 4 and Sonnet 4.

Applications are reviewed monthly on the first Monday, and Anthropic scores them on scientific merit, potential impact, technical feasibility, and a mandatory biosecurity screening. If you’re selected, you must respond within 5 business days, then complete any required compliance affidavits and liability releases within 14 days or you forfeit the award. If you’re not selected, Anthropic typically won’t notify you. You can reapply in a later monthly cycle.

They’re worth $5 of prepaid Anthropic usage across Claude models (Haiku, Sonnet, and Opus), and you can spend them via API calls, the Console Workbench, or Claude Code. In terms of scale, Anthropic estimates about 5 million input tokens on Claude Haiku 4.5 or about 1 million input tokens on Claude Opus 4.5. Your real mileage depends on output tokens too, since generation is billed separately. If you keep prompts tight and prototype on Haiku first, $5 is enough for a meaningful test run.

No.

The free $5 expires 14 days after you click the “Claim” button, not when you create the account.

Yes. If you have Anthropic credits you won’t use before they expire, you can list them on AI Credit Mart and sell them at up to 70% of face value. Companies regularly list surplus credits from startup programs and enterprise agreements.

AI Credit Mart has discounted Anthropic credits available from companies with surplus allocations. Prices are typically 30-70% below retail.

Once the free credits expire (or you use them up), API calls return errors and you must prepay to continue; you are not charged automatically.

Most failures come down to number type or region. VoIP numbers (including Google Voice), app-generated numbers, and landlines are not accepted. US-based phone numbers tend to work reliably, UK numbers are explicitly excluded, and other regions can be hit or miss, so try a different eligible mobile number if you’re stuck.

Yes, but it requires a separate $5 deposit to reach Build Tier 1, which needs a credit card and is not the same as the free credits.

The program includes a $3,850/week stipend plus about $15,000/month in compute funding for research expenses during a four-month, full-time fellowship. In practice, that compute budget is meant to cover the infrastructure needed to execute your project, while the stipend covers your time. It’s not a coupon code for the public; it’s tied to being accepted as a fellow. Anthropic also frames the expected “value” as publishable output, with many prior fellows producing papers and some converting into full-time roles.

No.

For this program, the compute funding runs for the four-month fellowship term, and then it ends.

Yes. If you have Anthropic credits you won’t use before they expire, you can list them on AI Credit Mart and sell them at up to 70% of face value. Companies regularly list surplus credits from startup programs and enterprise agreements.

AI Credit Mart has discounted Anthropic credits available from companies with surplus allocations. Prices are typically 30-70% below retail.

In the Fellows Program, the compute funding is tied to the fellowship period, so once the four months are over, you should assume the budget ends with it rather than rolling forward.

No. Anthropic says to apply to only one track, so pick the one that best matches your interests and background.

Yes, but only if you are located within the US, UK, or Canada, and you still need work authorization in one of those countries because there is no visa sponsorship.

They’re worth $25,000 of Claude API usage, usable across all Claude models in the Anthropic API. Anthropic’s own estimate says that at Claude Sonnet 4.5 rates, $25K is roughly 8.3 billion input tokens or about 1.67 billion output tokens; Haiku 4.5 stretches further to about 25 billion input tokens. In practice, that’s enough budget for serious evaluation work, a real beta, and an early production ramp if you lean on Batch API and caching. The bigger hidden value, honestly, is the priority rate limits if your app needs throughput.

No.

Credits typically expire 12 months from the grant date, and the expiration date can’t be extended.

Yes. If you have Anthropic credits you won’t use before they expire, you can list them on AI Credit Mart and sell them at up to 70% of face value. Companies regularly list surplus credits from startup programs and enterprise agreements.

AI Credit Mart has discounted Anthropic credits available from companies with surplus allocations. Prices are typically 30-70% below retail.

They become unusable, and Anthropic does not extend expiration dates.

The Anthology Fund is a venture investment (Menlo typically invests $100K+ for equity) plus $25,000 in Claude API credits, and it’s highly competitive. The VC Partner Program is credits-only and you apply through your VC’s unique link or referral code, with amounts that can vary (often from about $1,000 up to $25,000). If you don’t want dilution, the partner path is usually the one to pursue.

No. Anthropic uses a prepaid credit model, so API access stops when you hit zero. Auto-reload exists, but it’s opt-in only, meaning you must explicitly enable it.

They’re worth $50 USD (or your local currency equivalent) applied to “Extra Usage” on Claude, Claude Code, and Cowork. Since it works across all available models and features, you can treat it like real spend that offsets what you would otherwise pay out of pocket. Practically, it’s best used for a concentrated push: heavier daily usage, longer sessions, and more iteration without immediately hitting overage charges. Just remember it expires 60 days after claiming, so saving it “for later” usually backfires. If auto-reload is enabled, once the $50 is gone you can roll straight into standard overage rates.

No. You do need to already be a Pro or Max subscriber who started before the cutoff.

For this promo, the credit expires 60 days after you claim it (and the claim window ends Feb 16, 2026).

Yes. If you have Anthropic credits you won’t use before they expire, you can list them on AI Credit Mart and sell them at up to 70% of face value. Companies regularly list surplus credits from startup programs and enterprise agreements.

AI Credit Mart has discounted Anthropic credits available from companies with surplus allocations. Prices are typically 30-70% below retail.

They expire with no rollover, and the unused portion is forfeited.

No. Anthropic states it cannot be combined with other promotions.

No. It’s only for existing individual Claude Pro or Max subscribers who started before Feb 4, 2026, and it’s not available for Team, Enterprise, or API/Console users.