Anthropic Free Tier
Anthropic provides $5 in free API credits for new accounts to test Claude models. University students can apply for up to $300 in credits.
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Free Tier Details
Free Credits$5 for new accounts
Credit ExpiryCredits expire after 30 days
Models AvailableAll Claude models (Opus, Sonnet, Haiku)
Credit Card RequiredNo (for initial credits)
Anthropic also offers credits through cloud providers: AWS Bedrock and Google Vertex AI startup programs can provide $100K+ in credits that work with Claude models.
Cheapest Paid Models on Anthropic
When you need more than the free tier, these are the most affordable options.
| Model | Context | Input / 1M | Output / 1M |
|---|---|---|---|
| Claude 3 Haiku | 200K | $0.250 | $1.25 |
| Claude 3.5 Haiku (2024-10-22) | 200K | $0.800 | $4.00 |
| Claude Haiku 4.5 | 200K | $1.00 | $5.00 |
| anthropic-claude-3.5-sonnet-20240620 | — | $3.00 | $15.00 |
| Claude 3.5 Sonnet | 200K | $3.00 | $15.00 |
| Claude Sonnet 4 | 200K | $3.00 | $15.00 |
| Claude Sonnet 4.6 | 1000K | $3.00 | $15.00 |
| Claude Sonnet 4.5 | 1000K | $3.00 | $15.00 |
| Claude Opus 4.5 | 200K | $5.00 | $25.00 |
| Claude Opus 4.6 | 1000K | $5.00 | $25.00 |
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