01Build on
Models
New models worth building on, in every modality.
Fugu Ultra v2
Sakana’s high-performance multi-agent orchestration model, 1M context.
GPT Sol
OpenAI’s budget-tier GPT family alias with 1.1M context for cost-sensitive builders.
Nex N2.5 Pro
396.8B open-weights model under Apache-2.0, a self-hostable step up from the mini line.
Nex N2.5 mini
35.1B text-generation model under Apache-2.0, a mid-size open option for builders who need capability without 700B overhead.
DeepSeek V4.1 Flash
763B-param image-text-to-text model under MIT; the open multimodal flagship builders can deploy without closed-API lock-in.
DeepSeek V4.1 Flash
A brand-new base model wearing a point-release number, not a fine-tune of V4.
GPT-Live-1
Natural voice experiences in the API, targeting real-time speech interactions for production voice agents.
tiny-aya base 32K
3.4B multilingual base model with 32K context under CC-BY-NC-4.0, a local option for long-context tasks.
GigaChat 3.5 432B A28B Reasoning
432B open reasoning model under MIT, aimed at builders who need explicit reasoning traces without proprietary APIs.