GPT-5 API

openai/gpt-5-2025-08-07
GPT-5 is OpenAI's latest advanced large language model featuring a 400K token context window and unified multimodal capabilities including text, images, and audio.
Context
400K tokens
Input
$1.625 / 1M tokens
Output
$13 / 1M tokens

How to use GPT-5 API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to openai/gpt-5-2025-08-07.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "openai/gpt-5-2025-08-07",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "openai/gpt-5-2025-08-07",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5-2025-08-07","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

GPT-5 API Pricing

TypePrice
Input
$1.625 / 1M tokens
Output
$13 / 1M tokens
Cached input
$0.1625 / 1M tokens

GPT-5 Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
AIME 2025
94.6%
Competition mathematics (AIME), 2025SourceJuly 8, 2026
SWE-bench Verified
74.9%
Resolving verified real GitHub issuesSourceJuly 8, 2026
Intelligence
23
Composite score across standardised reasoning, knowledge and problem-solving evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026
Coding
37.8
Composite score across standardised coding evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026
Math
94.3
Composite score across standardised mathematics evaluations, measured independently by Artificial AnalysisSourceSeptember 12, 2026

GPT-5 vs other models

ModelInputOutputContextBest for
GPT-5
This page
$1.625 / 1M tokens
$13 / 1M tokens
400K tokens
Reasoning + agents
$6.5 / 1M tokens
$39 / 1M tokens
1.05M tokens
Reasoning + agents
$2.6 / 1M tokens
$13 / 1M tokens
1M tokens
Balanced coding + agents
$3.9 / 1M tokens
$19.5 / 1M tokens
1M tokens
Long-context, multimodal & agentic workflows
$0.65 / 1M tokens
$3.9 / 1M tokens
1.05M tokens
Reasoning + agents

Frequently asked questions

GPT-5 has a 400,000 tokens context window and can return up to 128,000 tokens.

GPT-5 takes image, text as input and returns text.

Use openai/gpt-5-2025-08-07 as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.

GPT-5 is priced at input $1.625 / 1M tokens, output $13 / 1M tokens, cached input $0.1625 / 1M tokens.

Yes, GPT-5 can stream responses as they are generated.

Yes, GPT-5 accepts image input alongside text.

GPT-5 was built by OpenAI.

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