AI API Router Directory

Weights & Biases Serverless Inference gives API and playground access to open-source LLMs hosted on CoreWeave, using an existing W&B account and no separate provider keys, with support for bringing your own LoRA weights for fine-tuned models. Token rates are listed per 1M tokens on the W&B pricing page: Meta Llama 3.1 8B at $0.22 input / $0.22 output, Meta Llama 3.3 70B at $0.71 / $0.71, OpenAI GPT OSS 120B at $0.03 / $0.17, NVIDIA Nemotron 3.5 Lightning at $0.07 / $0.20 with a $0.04 cache-hit rate, and DeepSeek V4-Pro at $1.15 / $2.55 with a $0.20 cache-hit rate. Inference spend is separate from platform subscriptions and can be capped with a monthly W&B Inference budget.

Weights & Biases states only that Inference includes 'Free credits for a limited time' on the Free plan and a $5/mo credit on Pro, with no dollar amount or expiry published for the free grant (checked 2026-09-16).

Copy the "token" value from chat.z.ai → DevTools → Application → Local Storage. Do not copy cookies; OmniRoute handles the per-request CAPTCHA through its browser transport.

No free tier — pay-as-you-go only.

ZCode is Zhipu's official coding client for the GLM Coding Plan sold on bigmodel.cn, whose personal tiers are listed in CNY: ¥94.4/month (list ¥118) with 10,000 credits per week, ¥430.4/month (list ¥538) at six times the Lite allowance, and ¥862.4/month (list ¥1078) at fourteen times, each unlocking Claude Code, Codex, Cursor, OpenCode, Cline, Kilo Code and AutoClaw, with ZCode subscribers receiving 150% quota. The platform's API price list shows GLM-5.3 at 8 CNY per million input tokens and 28 CNY output, GLM-5.3-Flash at 0.8/2.8 CNY, GLM-TTS at 2 CNY per 10,000 characters, and Batch calls at half the standard price. New registered users receive 20 million tokens, and GLM-4.7-Flash (200K context) and GLM-4.6V-Flash are listed as free API models.

Allowance is 20,000,000 tokens for newly registered users ('新用户注册得 2000万 Tokens') plus up to 200 million tokens via referral on bigmodel.cn/pricing; no CNY or USD cash value is stated for the grant (checked 2026-09-16).