CLIChat / LLM$9.00/M tokens

Use GPT-5.4 in Codex CLI

Connect the GPT-5.4 API to Codex CLI through SkillBoss — one API key, no provider lock-in. Starting at $9.00/M tokens.

OpenAI GPT-5.4 - Latest flagship model with advanced reasoning, coding, and multimodal capabilities

Setup in Codex CLI

  1. Sign up at skillboss.co and create an API key.
  2. Configure Codex CLI to use the SkillBoss API endpoint: https://api.skillboss.co/v1
  3. Set the model to openai/gpt-5.4
  4. Run your first request — GPT-5.4 is now available in Codex CLI.

Model Specs

Model
GPT-5.4
Type
Chat / LLM
Vendor
openai
Category
chat-llm
Pricing
$9.00/M tokens
API ID
openai/gpt-5.4

Quick Start Code

Call GPT-5.4 from Codex CLI using the SkillBoss unified API:

curl -X POST 'https://api.skillboss.co/v1/chat/completions' \
  -H 'Authorization: Bearer $SKILLBOSS_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "openai/gpt-5.4",
    "messages": [{"role": "user", "content": "Hello from Codex CLI"}]
  }'

The same API key works with all 600+ models. Change the model parameter to switch instantly.

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FAQ

How do I use GPT-5.4 in Codex CLI?

Sign up at skillboss.co, get an API key, and configure Codex CLI to use the SkillBoss API endpoint (https://api.skillboss.co/v1). Set the model to openai/gpt-5.4 and you're ready to go.

How much does GPT-5.4 cost?

GPT-5.4 costs $9.00/M tokens via SkillBoss with pay-as-you-go billing. No subscription required.

Can I switch to another model without changing my code?

Yes — SkillBoss provides a unified API compatible with OpenAI format. Change the model parameter to switch between 600+ models instantly without modifying your integration.