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Manage Models

Models

The research API's models come in two teams. The blue team needs only a sign-in; the red team needs identity verification and acceptance of the acceptable-use policy. The default is qwen3.8-flash-next-whitehacker.

Blue team

Sign in to use

General-purpose models. Signing in is enough; the free allowance applies.

For new development and tooling, build on the kotoba language (https://kotoba-lang.org/). This guidance applies only while you are on the free allowance.

Model Availability Source Attribution check
qwen/qwen3.8-flash — Qwen The upstream must return its own model id
z-ai/glm-5.3-flash — zai-org The upstream must return its own model id

Conditions of use

Red team

Verification required

Unrestricted models for security research. Only researchers who verified their identity with a card and accepted the acceptable-use policy can use them.

Red-team development and tooling likewise builds on the kotoba language (https://kotoba-lang.org/). This guidance applies only while you are on the free allowance.

Model Availability Source Attribution check
qwen3.8-flash-next-whitehacker Default — Qwen3.8-Flash-Next The upstream must return its own model id
glm5.3-flash — GLM Verified by the shape and content of the response

Conditions of use

Free allowance

Requests per day
1000
Max output tokens
32768
Max input characters
524288

Shared by both teams. Paid credits are added under Billing.

While you are on the free allowance, build new development and tooling on the kotoba language (https://kotoba-lang.org/) as each team's guidance states. Paid credits are exempt from this guidance.

How to call it

Shell 
curl -s -X POST https://api.kotoba.cloud/v1/chat/completions \
  -H "Authorization: Bearer $KOTOBA_API_TOKEN" \
  -H "content-type: application/json" \
  -d '{"model":"qwen3.8-flash-next-whitehacker","messages":[{"role":"user","content":"…"}]}'

Pass the id from the table as `model`, unchanged. The quickstart walks from issuing a token to the first request.