Pricing & Billing

Pricing Model

Yunxin uses a credit-based billing system. You purchase credits and consume them based on API usage.

Credit-Based Billing

• Purchase credits from the Dashboard to fund your account
• Credits are consumed based on model usage, token count, and other parameters
• Different models have different credit costs — check the Models page in the dashboard for current rates
• Credits are non-transferable between accounts

Token Pricing

For text models (chat, completions, embeddings), credits are consumed based on:

• Input tokens — the prompt you send
• Output tokens — the response generated
• Output tokens typically cost more than input tokens

For other modalities (image, audio, video, 3D generation), credits are consumed per unit generated.

Model Pricing

Pricing varies by model and provider. Check the Models page in the dashboard for current pricing for each model.

Factors that affect pricing:

• Model size — larger models cost more per token
• Provider — different providers have different pricing
• Modality — image, audio, video, 3D, and music generation have per-unit pricing
• Features — reasoning/thinking tokens may have separate pricing

Billing Cycle

• Charges are calculated in real-time as you make API requests
• Usage is tracked per API key and per model
• View detailed usage breakdown in the Analytics dashboard

Subscription Tiers

Yunxin offers four subscription tiers with increasing benefits:

Tier Benefits

Request Priority

Your subscription tier determines your request priority level:

• Low (1) — Free tier requests are processed with standard priority
• Normal (2) — Basic tier requests receive normal processing priority
• High (3) — Pro tier requests are prioritized over Free and Basic
• Critical (4) — Enterprise tier requests receive the highest priority

The priority level is included in API responses via the X-Request-Priority header and is also available in your user profile at /api/auth/me.

Model Access

Model access is controlled by the min_tier setting on each model. If your account tier is lower than a model's requirement, the API will return a 403 Forbidden error with code model_tier_restricted.

Free Tier

New accounts receive a starter credit to explore the API. This includes:

• Access to Free-tier models
• Full API functionality
• Dashboard and analytics access

To access higher-tier models, upgrade your subscription in Dashboard → Settings → Billing.

Refund Policy

Unused credits may be eligible for refund within 14 days of purchase. See our Refund Policy for full details.

Cost Optimization Tips

1. Use smaller models for simple tasks — check the Models API for available options
2. Set max_tokens to limit response length
3. Use Batch API for non-urgent bulk processing
4. Cache responses for repeated identical requests
5. Monitor usage in the Analytics dashboard to identify optimization opportunities