GPT Audio 1.5

by OpenAI

Announcement · All OpenAI releases

GPT Audio 1.5 is OpenAI's audio model for the Chat Completions API, released February 23, 2026, and its named replacement for the earlier gpt-audio and gpt-audio-mini models. It takes text and audio input and can answer in text, in speech with a transcript, or both, inside an ordinary request and response rather than a live session. It accepts audio parts in the conversation, so it can listen to a recording and answer about it, and with modalities set to text and audio it speaks its reply in a chosen voice. It supports tool calling and a 128,000-token context with up to 16,384 output tokens. Each request must carry audio in or ask for audio out; a text-only exchange is refused by OpenAI. It fits voice features that work turn by turn, such as spoken answers in an app, voice notes that get a spoken reply, and audio question answering, where a realtime session would be more than the task needs.

Call GPT Audio 1.5 on Opper with the OpenAI SDK. Sign up without a credit card. Get started

Key info

Input
Output
Features
Context window
128K
Max output
16K
Text input price
$2.50 /1M
Text output price
$10.00 /1M
Audio input price
$32.00 /1M
Audio output price
$64.00 /1M
Released
Web search
  • US residency available
  • Zero data retention with abuse monitoring
  • No training by default
  • GDPR DPA available

Available routes

GPT Audio 1.5 runs on 1 route through the Opper gateway. Compare residency, zero data retention and training posture at a glance, with full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutputCache read
USNo$2.50$10.00Input price

Live routes and prices as JSON: api.opper.ai/v3/models?q=openai%2Fgpt-audio-1.5

Uptime and availability

GPT Audio 1.5 runs on a single route through the Opper gateway today, so its availability is that provider's availability.

96.40%route uptime, last 30 days
Single route, no failover target within this model.

Name a second model in the same request and the gateway tries it on retriable errors, so a busy hour never has to reach your users. Set up a fallback chain.

Measured over the last 30 days from each provider's official status feed via StatusGator. Refreshed hourly. See uptime for every provider Opper monitors.

Data handling per route

Each route hosting GPT Audio 1.5 has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

OpenAI — United States🇺🇸

Zero data retention with abuse monitoring: prompts and outputs are kept for up to 30 days for abuse monitoring only, and are not used for training. No training on customer data. US; SCCs; DPA available.

Zero data retention
With abuse monitoring, 30-day window.
Training
No training on customer data.
Logging
Abuse monitoring (30-day retention)
Abuse monitoring
On by default, holds flagged content, 30 days, a person can view samples
Caching
Content cached for replay
GDPR DPA
DPA available
Transfer mechanism
SCCs

Get started

Call GPT Audio 1.5 through the Opper gateway with one API key. Opper is drop-in compatible with the OpenAI, Anthropic and Google AI SDKs.

GPT Audio 1.5 is a premium model on Opper. Sign up needs no credit card: you get an API key straight away and the free models work in the playground and the API. Add a card to use premium models, pay-as-you-go with no minimum.

Set it up with your agent

Copy this and paste it into a coding agent like Claude Code, Cursor or Codex and it'll wire up Opper for you.

Or call it directly

import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.OPPER_API_KEY,
baseURL: "https://api.opper.ai/v3/compat",
});
const completion = await client.chat.completions.create({
model: "openai/gpt-audio-1.5",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

Use GPT Audio 1.5 in your apps

Pick your tool, then choose GPT Audio 1.5 to see how to run it through Opper.

Use GPT Audio 1.5 with tools

The tools GPT Audio 1.5 can use through Opper. Pick one to see how to set it up.

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