Bring your own Claude key, pick your model, pay only 1 credit

Two big changes to the game builder in one week. First, a model picker with five Anthropic models so you can trade off quality against cost per generation. Second, bring-your-own-key support so power users can run generations on their own provider account for a flat 1-credit platform fee.

The model picker

• Claude Opus 5.5 (100 credits quick, 300 full; Indie plan or higher): frontier reasoning, best for ambitious multi-mechanic games
• Claude Sonnet 5 (20 credits quick, 60 full; default): great balance of quality and speed, right for most games
• Claude Fable 5 (25 credits quick, 75 full; Indie or higher): creative-writing tuned; best for narrative-heavy games
• Claude Sonnet 4.6 (15 credits quick, 45 full): the previous default, kept for backwards compatibility
• Claude Haiku 4.5 (5 credits quick, 15 full): fastest and cheapest; good for jams and prototyping

Every price is sized above provider cost with margin at the Indie pack rate, so a runaway agent burning Opus on our platform key stays margin-positive.

BYOK

For the developers who already have an Anthropic account and would rather pay the provider directly, we now support bringing your own key. Add one at /dashboard/api-keys (encrypted at rest with AES-256-GCM, never returned through the API, never logged). Toggle the "Use my Anthropic key" checkbox on any generation and we charge you a flat 1-credit platform fee regardless of the model you picked.

• Encrypted at rest with a key derived from AUTH_SECRET via scrypt
• Platform never sees the key in plaintext except for the duration of one Anthropic call
• Delete a key any time; the next generation falls back to the platform key
• Available on Indie plan and higher