gpt-5-codex
NixAPI price, from
USD per 1M tokens · via group Codex-Gpt-1 · Official list price $1.25 / $10Save 94%
About gpt-5-codex
GPT-5-Codex is a version of GPT-5 optimized for agentic coding in Codex. Like its predecessor codex-1, the model is trained on real-world coding tasks using reinforcement learning across diverse environments to produce code that closely matches human style and PR preferences, follow instructions precisely, and iteratively run tests until they pass.
Price by routing group
Pick a group in the console when you create a key. Status is live from the router. Live status by group →
| Group | Group status | Model status | Multiplier | Input | Output | Cache read | Cache write |
|---|---|---|---|---|---|---|---|
Codex-Gpt-1 | … | ×0.0621 | $0.0777 | $0.6214 | $0.007768 | — | |
Azure-Gpt-1 | … | ×0.0744 | $0.0929 | $0.7436 | $0.009295 | — | |
Azure-Gpt-2 | … | ×0.169 | $0.2113 | $1.69 | $0.0211 | — | |
Azure-Gpt-3 | … | ×0.3718 | $0.4647 | $3.718 | $0.0465 | — | |
Azure-Gpt-4 | … | ×0.7436 | $0.9295 | $7.436 | $0.0929 | — | |
Azure-Gpt-5 | … | ×1.014 | $1.268 | $10.14 | $0.1268 | — |
USD per 1M tokens
Supported endpoints
Call gpt-5-codex in one request
Works with the OpenAI SDK and any OpenAI-compatible client. Replace the key with your own.
curl https://api.nixapi.com/v1/chat/completions \
-H "Authorization: Bearer $NIXAPI_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5-codex",
"messages": [{"role": "user", "content": "Hello!"}]
}'from openai import OpenAI
client = OpenAI(base_url="https://api.nixapi.com/v1", api_key="sk-…")
resp = client.chat.completions.create(
model="gpt-5-codex",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)import OpenAI from 'openai';
const client = new OpenAI({ baseURL: 'https://api.nixapi.com/v1', apiKey: process.env.NIXAPI_KEY });
const resp = await client.chat.completions.create({
model: "gpt-5-codex",
messages: [{ role: 'user', content: 'Hello!' }],
});
console.log(resp.choices[0].message.content);Questions about gpt-5-codex
How much does gpt-5-codex cost on NixAPI?
From $0.0777 per 1M input tokens and $0.6214 per 1M output tokens in the Codex-Gpt-1 group, about 94% below the official list price. Prices are pay-as-you-go in USD with no monthly minimum.
How do I call gpt-5-codex?
Point any OpenAI-compatible client at https://api.nixapi.com/v1, use your NixAPI key and set the model to "gpt-5-codex".
Which routing groups serve gpt-5-codex?
gpt-5-codex is available in 6 routing groups: Codex-Gpt-1, Azure-Gpt-1, Azure-Gpt-2, Azure-Gpt-3, Azure-Gpt-4, Azure-Gpt-5. The lowest price is in Codex-Gpt-1.