Nextbit

Spanish AI cloud, open models served from Nextbit's own data center in Spain.

Nextbit (NEXTBIT 256, S.L.) is a Spanish AI infrastructure company founded in 2021 and backed by the Valencia accelerator Lanzadera, offering serverless pay-per-token inference alongside dedicated single-tenant GPU endpoints. It runs its own high-performance data center in Spain and also provisions capacity from third-party clouds, so residency is declared per endpoint, and the route Opper uses is the EU one, with Spain as the processing country under Spanish law. Nextbit does not train, fine-tune, or otherwise adapt any model on customer data, data attached to API requests may be held for up to 90 days in isolated, access-restricted environments for reliability diagnostics before automatic deletion, an Article 28 GDPR DPA is available on request, and zero data retention can be arranged via Opper Enterprise. On Opper the catalogue pairs open-weight staples, GLM-5.2, Gemma 4 26B A4B and Qwen3 14B, with two firsts for the directory, Spain's publicly funded ALIA 40B from the Barcelona Supercomputing Center and a set of community fine-tunes from Sao10K, Gryphe, Undi95 and TheDrummer. A good pick when you want Spanish hosting for open weights, or character and creative-writing models served inside the EU.