# Taifoon Llama-3.3-70B Chat Completion

> Taifoon Llama-3.3-70B Chat Completion is a paid API for AI agents from coord.taifoon.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).

OpenAI-compatible chat completion endpoint running meta-llama/Llama-3.3-70B-Instruct via DeepInfra serverless inference, sold by Taifoon with per-token pricing verified before billing.

## Facts

- Endpoint: POST https://coord.taifoon.dev/v1/chat/completions/llama-3.3-70b?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/taifoon-llama-3-3-70b-chat-completion-8fe924aa
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Eh8RLMoZE930oic1QVllB

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability taifoon-llama-3-3-70b-chat-completion-8fe924aa -d '<json body>'
```

Example prompt: Ask Llama 3.3 70B: 'Explain the key differences between reinforcement learning and supervised learning in simple terms' — keep the reply under 400 tokens.

## When to prefer this

Choose this endpoint when you specifically want Llama-3.3-70B-Instruct inference through an OpenAI-compatible interface with pay-per-call micropayment billing (x402/USDC), rather than managing your own DeepInfra account or API keys. Ideal for agents that need serverless, no-subscription LLM calls billed per token with answer verification before charging. Prefer over the multi-model Taifoon endpoint when you explicitly want Llama-3.3-70B and don't need model selection flexibility.

## Known failure modes

- max_tokens exceeds 700 — request rejected with validation error
- messages array empty or missing — required field error
- model string not recognized — falls back to default model or returns error
- prompt too long relative to model context window — truncation or error
- payment not fulfilled via x402 protocol — 402 Payment Required response
- DeepInfra backend unavailable — 503 or timeout

## How this service works

OpenAI-compatible chat completion on meta-llama/Llama-3.3-70B-Instruct, served by DeepInfra (serverless inference) and sold by Taifoon at the provider's price plus a 3 % reseller cut: 0.103 / 0.3296 USD per 1M tokens in/out. This request is priced at its prompt and max_tokens. The answer is checked before you are charged.

## Output

Returns an OpenAI-compatible chat completion JSON object containing the assistant's generated text response, finish reason, token usage counts (prompt and completion tokens), and model metadata. The answer is verified before billing is applied.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "model": {
   "type": "string",
   "examples": [
    "meta-llama/Meta-Llama-3.1-8B-Instruct",
    "deepseek-ai/DeepSeek-V4-Flash",
    "deepseek-v4-flash",
    "openai/gpt-oss-120b",
    "openai-gpt-oss-120b",
    "meta-llama/Llama-3.3-70B-Instruct",
    "Qwen/Qwen2.5-72B-Instruct",
    "deepseek-ai/DeepSeek-V3.2",
    "deepseek-v3.2",
    "z-ai/glm-5.3-flash",
    "Qwen/Qwen3-VL-30B-A3B-Instruct",
    "Qwen/Qwen3-235B-A22B-Instruct-2507"
   ],
   "description": "optional; one of the 22 models this wall delivers (GET lists them under terms.models); without it nvidia/NVIDIA-Nemotron-3-Nano-4B-BF16 answers"
  },
  "messages": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "role",
     "content"
    ],
    "properties": {
     "role": {
      "enum": [
       "system",
       "user",
       "assistant"
      ],
      "type": "string"
     },
     "content": {
      "type": "string"
     }
    }
   },
   "maxItems": 32,
   "minItems": 1
  },
  "max_tokens": {
   "type": "integer",
   "maximum": 700,
   "minimum": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/taifoon-llama-3-3-70b-chat-completion-8fe924aa/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from coord.taifoon.dev](https://www.zero.xyz/host/coord.taifoon.dev/llms.txt)