DeepSeek: R1 0528

DeepSeek R1 0528 is a text-only reasoning model from DeepSeek with a 163,840-token context window and a 32,768-token output ceiling. It supports tool use and has reasoning capabilities built in, making it suited to multi-step tasks that benefit from structured chain-of-thought processing. Structured output support is unconfirmed, so teams with strict JSON schema requirements should verify compatibility before committing. At $0.50 per million input tokens and $2.15 per million output tokens, the pricing sits in a mid-tier range that could appeal to developers running moderately long reasoning workloads without the budget for premium models. The catch is that there is currently no independent benchmark coverage, so performance relative to competitors is unproven. Teams willing to run their own evals may find the price reasonable for exploration, but those who need externally validated quality scores should wait for broader coverage before relying on it in production.