GPT-4o

by OpenAI

The August 2024 snapshot of GPT-4o is the version that introduced strict Structured Outputs, guaranteeing responses that conform exactly to a supplied JSON schema. On complex schema-following evaluations OpenAI reports it reaches full compliance, a large jump over earlier models. It keeps GPT-4o's omnimodal capabilities, 128,000 token context window, vision input, and function calling for tool use. This dated snapshot suits applications that depend on dependable structured output and want behaviour pinned to a specific, reproducible version.

Key info

Input
Output
Features
Context window
128K
Max output
16K
Input price
$2.50 /1M
Output price
$10.00 /1M
  • US residency available
  • Zero data retention via Enterprise
  • No training by default
  • GDPR DPA available

Available routes

GPT-4o runs on 1 route through the Opper gateway. Compare residency, ZDR, and training posture at a glance β€” full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutput
OpenAIUSEnterpriseNo$2.50$10.00

Training posture across routes: No training on prompts by default.

Data handling per route

Each route hosting GPT-4o has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

OpenAI β€” United StatesπŸ‡ΊπŸ‡Έ

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; SCCs; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring (30-day retention)
Third-party access
None disclosed
GDPR DPA
DPA available
Transfer mechanism
SCCs

Benchmarks

Independent benchmark scores β€” composite indices for reasoning, coding, and math, plus individual eval scores where available.

Global rank#330 of 531 LLMs
TierEfficient
Output speed107 tok/s
First token0.57s
Intelligence Index9.6
Coding Index16.6
Reasoning & knowledge
GPQA Diamond
52%
Humanity's Last Exam
3%
Long-context reasoning
35%
Coding
LiveCodeBench
32%
SciCode
33%
Agentic & tool use
Terminal-Bench Hard
8%
τ²-Bench Telecom
29%
Math & instruction following
IFBench
36%

Get started

Call GPT-4o through the Opper gateway with one API key. Let your coding agent set it up, or call it directly β€” Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into your coding agent β€” Claude Code, Cursor, Codex, and more β€” 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-4o-2024-08-06",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

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Side-by-side on privacy, EU hosting, pricing, and benchmarks.

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GPT-4o by OpenAI β€” pricing, benchmarks | Opper AI