OpenAI200K contextgpt-5

GPT-5

OpenAI's frontier — strong reasoning, broad knowledge, fast tool use

GPT-5 is OpenAI's frontier model — strong general reasoning, excellent multimodal support, and the broadest world-knowledge cutoff in the lineup. The default choice for OpenAI-native stacks and the strongest model on most knowledge-recall benchmarks. Pairs naturally with the OpenAI Responses API and Realtime API.

Pricing

Rate	List price	Anvat effective	Savings
Input	$10.00	$7.00	30%
Output	$30.00	$21.00	30%
Cache read	$2.50	$1.75	30%
All prices per million tokens (MTok). List = provider direct. Anvat effective = 30% discount applied.

Pricing verified 2026-06 · See full Anvat pricing

Strengths

Strongest world-knowledge benchmark scores in 2026
Native multimodal — text, vision, audio in one model
Excellent function-calling reliability
Wide ecosystem — works out of the box with OpenAI SDK, Vercel AI SDK, LangChain
Strong on math and structured reasoning

Where it underperforms

More expensive than Claude Sonnet 4.6 for similar coding-quality tasks
Output speed slightly slower than Claude Sonnet in long generations
Less aggressive prompt caching than Anthropic models

Use cases this model is the right pick for

OpenAI-native applications (Responses, Realtime, Assistants)
Multimodal workflows (vision + text together)
Function calling in production stacks
Math, science, and structured reasoning
Customer chat with broad world knowledge

Benchmarks

reasoning
MMLU / general knowledge
Industry-leading
vision
Multimodal (vision)
Top-tier
agentic
Function calling
Excellent

Benchmark numbers self-reported by provider; verify against the latest publisher documentation before quoting.

Quickstart

Same wire format as direct provider APIs — your existing SDK code keeps working. Point at api.anvat.app/v1 and use your Anvat key.

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.anvat.app/v1",
  apiKey: process.env.ANVAT_API_KEY,
});

const response = await client.chat.completions.create({
  model: "gpt-5",
  messages: [
    { role: "user", content: "Walk me through the proof of Fermat's little theorem." },
  ],
});

Try GPT-5 — 30% off list

Same model, same quality, same wire format — at the discounted Anvat effective rate. $2 free credit on signup, no card required.

Get a key →