Prism
Fast, reliable inference for AI agents
Prism is an OpenAI- and Anthropic-compatible inference API designed for coding agents, providing access to open-weight models without requiring users to operate their own GPU infrastructure. It serves DeepSeek-V4.1-Flash and DeepSeek-V4-Flash through a single API key, applying strict zero data retention to API inputs and outputs, which are never used for training.
The service supports OpenAI Chat Completions and Anthropic Messages formats, allowing existing clients to connect by changing the base URL, API key, and model id. It works with clients such as Cursor and Claude Code, as well as configurable custom loops. Prism offers serverless APIs, dedicated endpoints, GPU control, and agent runtimes, with DeepSeek-V4.1-Flash described as a 552B MoE model with 1M context and DeepSeek-V4-Flash as a 1M-context model.
Prism is intended for developers and teams running agent workloads. Pricing is usage-based, billed per token with no per-seat fee. Options include pay-as-you-go serverless endpoints with no minimums, private Elastic Endpoints with per-workload tuning, dedicated deployments with reserved GPUs and negotiated latency SLAs, and a Batch option for high-throughput offline jobs. Private deployments in Prism's cloud or the customer's own environment are available by arrangement.
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