About GPT-5.4 (Fast)
GPT-5.4 (Fast) is a OpenAI model. On TeamoRouter its model ID is gpt-5.4 (fast), and the same TeamoRouter API key works for it and every other model. Setup steps are in the API docs.
- Model ID
gpt-5.4 (fast)- Provider
- OpenAI
- Context window
- 1M tokens
- Official list price
- $5 input / $30 output per 1M tokens
More OpenAI models
Use the GPT-5.4 (Fast) API
Point the base URL at TeamoRouter and use gpt-5.4 as the model name; nothing else changes. Python example:
from openai import OpenAI
client = OpenAI(
base_url="https://api.teamorouter.vip/v1", # the only line that changes
api_key="<TEAMOROUTER_API_KEY>",
)
response = client.chat.completions.create(
model="gpt-5.4",
service_tier="fast",
messages=[{"role": "user", "content": "Hello"}],
)
print(response.choices[0].message.content)GPT-5.4 (Fast) guides
- GPT Image 2.5 API: Flare vs Sunburst, 4K Sizes and Pricing (2026)
- Codex "stream disconnected before completion": What It Means and How to Fix It
- GPT-6.5 Release Date, Rumors and API: What We Know
- OpenAI "context_length_exceeded": "Your input exceeds the context window of this model" Fixed
- OpenAI API 429 "Rate limit reached for ... on tokens per min (TPM)": How to Fix It
- Codex "You've hit your usage limit": What It Means and How to Keep Coding
GPT-5.4 (Fast) FAQ
- What is the GPT-5.4 (Fast) API model ID?
- Send gpt-5.4 as the model name and turn on Fast mode as in the example above. The OpenAI-compatible base URL is https://api.teamorouter.vip/v1.
- How much does the GPT-5.4 (Fast) API cost?
- The official list price of GPT-5.4 (Fast) is $5 input / $30 output per 1M tokens. TeamoRouter bills per use with no monthly fee; see the price table on this page for the current discounted price.
- Can I use GPT-5.4 (Fast) in Codex?
- Yes. Add a TeamoRouter model provider to ~/.codex/config.toml (base_url = https://api.teamorouter.vip/v1, wire_api = responses) and set model to gpt-5.4. Full config: Codex setup.