Synthetic
subscription
Getting credentials
api-key
api_key via header (header Authorization: Bearer)
Environment: SYNTHETIC_API_KEY
Subscribe at synthetic.new and create an API key in the dashboard; send as Authorization: Bearer SYNTHETIC_API_KEY.
Endpoints
| ID | URL | Protocol | Auth |
|---|---|---|---|
| openai-chat | https://api.synthetic.new/openai/v1/chat/completions | openai-chat | any |
| anthropic | https://api.synthetic.new/anthropic/v1/messages | anthropic-messages | any |
API surfaces
textstreamingembeddings
Plan
- Price
- $30 / monthly
- Quota
- $1/day or $30/month per pack, stackable; 500 price-weighted requests / 5h + $24/week credits + 1 concurrent per model
- Notes
- Subscription includes all always-on models, no per-token billing; embeddings free and exempt.
- Docs
- https://synthetic.new/rate-limits
Quirks
Models offered
| Model | Wire ID | Endpoint | Status | Reasoning |
|---|---|---|---|---|
| alibaba/qwen3-8-27b | hf:Qwen/Qwen3.8-27B | openai-chat | ga | adaptive · default on · returns hidden |
| alibaba/qwen3-8-27b | syn:small:vision | openai-chat | ga | effort · default on · returns reasoning_content |
| moonshot/kimi-k3 | hf:moonshotai/Kimi-K3 | openai-chat | ga | adaptive · default on · returns hidden |
| moonshot/kimi-k3 | syn:large:vision | openai-chat | ga | effort · default on · returns reasoning_content |
| nvidia/nemotron-3-super | hf:nvidia/NVIDIA-Nemotron-3-Super-120B-A12B-NVFP4 | openai-chat | ga | toggle · default on · returns reasoning_content |
| openai/gpt-oss-120b | hf:openai/gpt-oss-120b | openai-chat | ga | adaptive · default on · returns hidden |
| zai/glm-4-7-flash | hf:zai-org/GLM-4.7-Flash | openai-chat | ga | effort · default on · returns reasoning_content |
| zai/glm-4-7-flash | syn:small:text | openai-chat | ga | effort · default on · returns reasoning_content |
| zai/glm-5-2 | hf:zai-org/GLM-5.2 | openai-chat | ga | adaptive · default on · returns hidden |
| zai/glm-5-2 | syn:large:text | openai-chat | ga | effort · default on · returns reasoning_content |