Using Jev on OpenRouter

TypeSafe Jev is available on OpenRouter under model identifier typesafe/jev-1.13 (alias: ~typesafe/jev-latest). Because Jev is a non-autoregressive decision model, it uses OpenRouter's Decisions API at POST https://openrouter.ai/api/alpha/decisions rather than /v1/chat/completions.

Quick Endpoint & Model Details

POST https://openrouter.ai/api/alpha/decisions
Authorization: Bearer <OPENROUTER_API_KEY>
Content-Type: application/json

• Model ID: typesafe/jev-1.13
• Pricing: Same as direct API ($0.042/1M input tokens, free output tokens)
• Context: 32,000 tokens (state plus questions), per OpenRouter
• SDK Method: openrouter.alpha.decisions.create(...)
• TypeSafe SDK users: OpenRouter also serves POST https://openrouter.ai/api/v1/systemone, so the official TypeSafe SDKs work after a base URL change

Python SDK Example

Using OpenRouter’s official Python SDK (openrouter), invoke Jev via the alpha.decisions module:

pip install openrouter

import os
from openrouter import OpenRouter

with OpenRouter(
    api_key=os.environ.get("OPENROUTER_API_KEY")
) as router:
    response = router.alpha.decisions.create(
        model="typesafe/jev-1.13",
        state={
            "customer_id": "cust_8820",
            "message": "My card was charged $49.00 twice on checkout. Please reverse the duplicate charge.",
            "account_age_days": 180
        },
        questions={
            "is_chargeback_risk": {
                "type": "noul",
                "instructions": "Is this customer expressing intent to file an external bank chargeback?",
                "criteria": {
                    "true": "Threatens bank dispute, fraud report, or legal action.",
                    "false": "Standard refund inquiry or friendly billing clarification."
                }
            },
            "routing_target": {
                "type": "choice",
                "instructions": "Determine the support department for this inquiry.",
                "criteria": {
                    "billing": "Invoices, double charges, payment processing errors.",
                    "support": "Product usage questions, bug reports.",
                    "legal": "Formal compliance demands, legal notices."
                }
            },
            "urgency": {
                "type": "score",
                "instructions": "Rate ticket urgency from standard to emergency.",
                "criteria": [
                    "Standard response SLA (24 hours)",
                    "Elevated attention required (4 hours)",
                    "Immediate escalation (15 minutes)"
                ]
            }
        }
    )

    print("Decision Response:")
    print(f"Chargeback Risk Probability: {response.answers['is_chargeback_risk'].noul:.1%}")
    print(f"Assigned Team: {response.answers['routing_target'].choice} (Confidence: {response.answers['routing_target'].confidence})")
    print(f"Urgency Score: {response.answers['urgency'].score}")

Direct HTTP / cURL Example

You can also call OpenRouter’s Decisions API directly using standard HTTP POST:

curl --request POST \
  --url https://openrouter.ai/api/alpha/decisions \
  --header "Authorization: Bearer $OPENROUTER_API_KEY" \
  --header "Content-Type: application/json" \
  --data '{
    "model": "typesafe/jev-1.13",
    "state": {
      "query": "Upgrade enterprise subscription to 500 seats with SSO integration"
    },
    "questions": {
      "intent": {
        "type": "choice",
        "instructions": "Classify sales lead intent.",
        "criteria": {
          "enterprise_expansion": "Adding seats, SSO, or enterprise features",
          "support_request": "Help with an existing product problem",
          "cancellation": "Downgrading or ending the subscription",
          "spam": "Unrelated or automated messages"
        }
      },
      "lead_score": {
        "type": "score",
        "instructions": "Evaluate enterprise deal potential.",
        "criteria": ["low", "moderate", "high", "exceptional"]
      }
    }
  }'

OpenRouter vs. Direct TypeSafe API

Related Context

reference↗ cost↗ alternative↗

Sources & Documentation

1. OpenRouter Documentation: Jev on OpenRouter — Model ID, ~typesafe/jev-latest alias, Decisions and System One endpoints, 32,000-token context, and no-waitlist access. Checked September 26, 2026.
2. OpenRouter API Reference: Submit a Decisions request — Request and response schema for POST /api/alpha/decisions.
3. OpenRouter Python SDK: Alpha.Decisions — alpha.decisions.create usage in the openrouter Python package.
4. OpenRouter Model Page: TypeSafe Jev 1.13 — Lists $0.042 input and $0 output per 1M tokens and a 32K context. Checked September 26, 2026.
5. TypeSafe Documentation: Models — Direct API price, rate limits, and 64k/32k context budgets.
6. TypeSafe AI: Introducing System One Models & Jev — Source of the 70ms–500ms end-to-end latency claim and early-access status.