GPT-5.4-mini Fast Grammar Cleanup & Rewrite Tool

x402

GPT-5.4-mini Fast Grammar Cleanup & Rewrite Tool is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.002627/call, status unknown (last checked 2026-09-14).

Performs fast grammar cleanup and concise rewrites of text using a mini-tier GPT model, paid via x402 USDC on Base

Price / call$0.002627

Seller volume →—

Success—

StatusUnknown

How this service works

Fast grammar cleanup and concise rewrites. Model tier: mini; upstream model: gpt-5.4-mini. Price is derived from official OpenAI relative token costs with a local margin and floor. Pay up to $0.002627 per request with x402 USDC on Base. Public paid calls are limited to 700000 input characters and 4096 output tokens.

Output

Returns a grammar-corrected, concise rewrite of the submitted text, constrained to the specified output token limit and shaped by any provided tone or instruction parameters. Output is plain rewritten prose.

Example use cases

Example prompt

“Can you clean up the grammar and rewrite this paragraph more concisely using a professional tone? Here's the text: 'The meeting was, it went well and we discussed many things and everyone agree that the project should move forward but nobody wrote down what was said.'”

Technical details

Endpoint

POSThttps://gpt55.558686.xyz/v1/tools/rewrite/mini

When to prefer

Choose this endpoint when you need fast, low-cost grammar correction and concise rewriting for moderate-length text (up to 700K chars) and want to pay per-call via USDC on Base. Prefer this over larger model tiers when speed and cost efficiency matter more than maximum reasoning depth, and over generic chat completions when a focused rewrite/cleanup interface is sufficient.

Side effects

Input text exceeds 700,000 character limit — returns 400 validation error
max_tokens set above 4096 — returns 400 validation error
Temperature out of 0–2 range — returns 400 validation error
Insufficient USDC balance for x402 payment — returns 402 Payment Required
Upstream model unavailable — returns 503 or upstream timeout
Empty or whitespace-only text — returns 400 minLength violation

Input

Schema · Request body

Field	Type	Description
text	string
tone	string
max_tokens	integer
instruction	string
temperature	number

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