# TypeSafe AI API Models, Pricing and Capabilities Canonical HTML page: [TypeSafe AI API Models, Pricing and Capabilities]() Markdown alternative: [TypeSafe AI API Models, Pricing and Capabilities as Markdown]() Access 1 model from TypeSafe AI through the Impossibl API, including Jev. Compare pricing per million tokens, context windows, and capabilities between different TypeSafe AI models. Select two or three models to [compare specifications and API costs](). Model types and billing units are not interchangeable. ## At a glance - models: 1 - modalities: takes text in, gives typed answers out - latest release: Jev (Sep 15, 2026) ## Models ### [Jev]() Jev is TypeSafe AI's System One decision model: it evaluates a state against typed yes/no, choice, and score questions and returns calibrated probabilities and confidence instead of generated text. It is built for routing, classification, guardrails, and scoring steps that need a fast, structured judgment your code can act on directly. Its published context window is 32,000 tokens. The advertised input rate is $0.042 per million input tokens. The advertised output rate is $0.00 per million output tokens. - API identifier: `typesafe-ai/jev` - Creator: TypeSafe AI; model type: Evaluation. - Context window: 32,000 tokens; tool calling: Not supported. - Inputs: text; outputs: typed answers with probabilities. - Base API pricing (USD): $0.042 per million input tokens; $0.00 per million output tokens. - [Complete model facts, cache rates, context tiers, and FAQs as Markdown]() ## Frequently asked questions ### Which TypeSafe AI models are available through Impossibl? The directory lists 1 model from TypeSafe AI available through the Impossibl API, including Jev. Open each model page for its API identifier, capabilities, and current pricing. ### How much do TypeSafe AI models cost? TypeSafe AI model prices vary by model and usage. All rates below are published base API rates in USD. For token-priced models, published input rates start at $0.042 per million input tokens. Published output rates start at $0.00 per million output tokens. Input and output minima may refer to different models. Individual model pages include published cache prices and billing units. Applicable fees and workspace-specific pricing can affect the amount paid. ### Does Impossibl add a markup to TypeSafe AI pricing? No. Usage is charged at the provider's list price with 0% usage markup. Prepaid credit purchases include a 5% platform fee, and there is no subscription. The rates on this page are TypeSafe AI's published base rates, and usage comes off your balance when the request finishes. ### What context windows do TypeSafe AI models support? Among TypeSafe AI models with a published limit on Impossibl, the largest context window is 32,000 tokens, listed for Jev. Context limits vary by model and are separate from maximum output limits. ### What inputs and capabilities do TypeSafe AI models support? Available model types include evaluation. Published input support includes text; support varies by model. Tool calling is published as unsupported for 1 model. ### How do I use TypeSafe AI models through an API? Use the exact model identifier from the model page with the Impossibl API. For example, select typesafe-ai/jev with /v1/systemone. Endpoint compatibility depends on the selected model. The API quickstart explains how to create an API key and send a request. ## Sources and related links Prices, capabilities, limits, and availability describe the public Impossibl API offering. An unpublished fact is unknown; a published zero price is zero. Compare matching billing units and check context tiers before estimating costs. - [Public Impossibl model catalog]() - [Full model directory as JSON]() - [Model directory as Markdown]() - [API quickstart]() - [Model documentation]()