# GPT-5.5 Plus Summarizer

> GPT-5.5 Plus Summarizer 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 comprehensive summaries of long text including decisions, risks, action items, and structured conclusions using a plus-tier GPT-5.5 model

## Facts

- Endpoint: POST https://gpt55.558686.xyz/v1/tools/summarize/plus
- 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-plus-summarizer-c36e1c69
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5aFVlkxO_pU39qZY_sSLd

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-plus-summarizer-c36e1c69 -d '<json body>'
```

Example prompt: Summarize this 50-page board meeting transcript in bullet format, highlighting all decisions made, risks identified, and action items assigned — keep the output under 1000 tokens: [transcript text here].

## When to prefer this

Choose this plus-tier endpoint when you need rich, structured summaries that go beyond simple condensation — specifically when decisions, risks, and action items need to be explicitly surfaced. Prefer over the mini-tier summarizer for longer, more complex documents (up to 700,000 characters) where quality and completeness of structured extraction matters more than cost. Use when the output requires organized conclusions rather than a quick triage summary.

## Known failure modes

- Input text exceeds 700,000 character limit — returns 400 error
- max_tokens exceeds 4096 — returns validation error
- Empty or missing text field — returns 400 error
- Payment of $0.17 USDC not completed via x402 on Base — returns 402 Payment Required
- Temperature outside 0–2 range — returns validation error
- Upstream GPT-5.5 model unavailable — returns 503 error

## How this service works

Plus summaries with decisions, risks, action items, and structured conclusions. Model tier: plus; 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 summary of the input text including extracted decisions, identified risks, assigned action items, and organized conclusions, formatted according to the requested style (bullets, paragraph, or one sentence), within the specified token limit.

## 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-plus-summarizer-c36e1c69/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)