# GPT-5.5 Pro Summarizer (Decision-Grade)

> GPT-5.5 Pro Summarizer (Decision-Grade) is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.17/call, status unknown (last checked 2026-09-14).

Generates decision-grade summaries of long text with identified risks, action items, and structured conclusions using GPT-5.5 professional tier.

## Facts

- Endpoint: POST https://gpt55.558686.xyz/v1/tools/summarize/pro
- Price: $0.17/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gpt-5-5-pro-summarizer-decision-grade-4043919c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZXAqbWi79ZWwW3F9qz0vJ

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 gpt-5-5-pro-summarizer-decision-grade-4043919c -d '<json body>'
```

Example prompt: Take this 50-page board report and give me a decision-grade summary in bullet format — highlight the key risks, action items, and main conclusions so I can brief my team on what we need to do next.

## When to prefer this

Choose this endpoint when you need a high-quality, decision-oriented summary — not just a condensed version — with explicitly surfaced risks and action items. It is preferred over the mini-tier endpoints when the document is complex, stakes are high, or the consumer of the summary needs to make decisions based on it. Best for long contracts, board reports, research papers, incident reports, or any text requiring professional-grade analytical synthesis.

## Known failure modes

- Text exceeds 700,000 character limit — request rejected
- Payment of $0.17 USDC on Base not provided or insufficient — 402 error returned
- Invalid format value provided — may produce unexpected output style
- Temperature out of range 0–2 — validation error
- max_tokens exceeds 4096 — capped or rejected
- Empty or missing text field — validation error

## How this service works

Decision-grade summaries with risks, action items, and structured conclusions. Model tier: professional; upstream model: gpt-5.5. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay up to $0.17 per request with x402 USDC on Base. Public paid calls are limited to 700000 input characters and 4096 output tokens.

## Output

A structured, professional-tier summary of the submitted text containing identified risks, prioritized action items, and clear conclusions formatted according to the requested style (bullets, paragraph, or single sentence), up to 4096 output tokens.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "maxLength": 700000,
   "minLength": 1
  },
  "format": {
   "type": "string",
   "description": "Desired summary style, e.g. bullets, paragraph, one sentence."
  },
  "max_tokens": {
   "type": "integer",
   "maximum": 4096,
   "minimum": 1
  },
  "temperature": {
   "type": "number",
   "maximum": 2,
   "minimum": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gpt-5-5-pro-summarizer-decision-grade-4043919c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gpt55.558686.xyz](https://www.zero.xyz/host/gpt55.558686.xyz/llms.txt)