Not Diamond

Not Diamond is an intelligent model router built for coding-agent workloads. It evaluates each step in a session and recommends a model and reasoning effort from the available pool, using signals such as payload semantics, cache state, prior turns, sub-agent structure, compaction events, and session outcomes. The router integrates with an existing agent harness and gateway instead of replacing the gateway. It suits engineering teams that want to control inference spend without defaulting every task to the most expensive model. The pay-as-you-go rate is $0.05 per million tokens routed, while enterprise pricing is customized and includes volume discounts, organization-wide analytics, security and admin controls, SAML SSO, SLAs, and around-the-clock support. Routing adds an average 100–200 ms per step. Privacy-preserving mode bases decisions on derived request characteristics and locally computed features rather than payloads, inputs, or outputs. The service is SOC 2 and ISO 27001 compliant. It works with multiple coding-agent harnesses, including Claude Code, and continuously learns from usage feedback and session results. The tradeoff is straightforward: teams add a routing dependency and some latency in exchange for model selection tuned to cost and quality.