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GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency use cases such as classification, data extraction, ranking, and sub-agent execution. The model prioritizes responsiveness and efficiency over deep reasoning, making it ideal for pipelines that require fast, reliable outputs at scale. GPT-5.4 nano is well suited for background tasks, real-time systems, and distributed agent architectures where minimizing cost and latency is essential.
from openai import OpenAI client = OpenAI( base_url="https://api.respan.ai/api/", api_key="YOUR_RESPAN_API_KEY",) response = client.chat.completions.create( model="azure/gpt-5.4-nano", messages=[{"role": "user", "content": "Hello!"}],)print(response.choices[0].message.content)from openai import OpenAI client = OpenAI( base_url="https://api.respan.ai/api/", api_key="YOUR_RESPAN_API_KEY",) response = client.chat.completions.create( model="azure/gpt-5.4-nano", messages=[{"role": "user", "content": "Hello!"}],)print(response.choices[0].message.content)Gateway routes for this model on the Respan gateway, including fallback routes when configured.
| Model | Capabilities | ||||||
|---|---|---|---|---|---|---|---|
| azure/gpt-5.4-nano | 400K | $0.20/M | $1.25/M | Read:$0.02/MWrite:$0.00/M | — | +2 | — |
Other models from the same provider available through the gateway.
| Model | Capabilities | ||||||
|---|---|---|---|---|---|---|---|
| azure_openai/gpt-5.4 | 272K | $1.25/M | $10.00/M | Read:$0.25/MWrite:$0.00/M | — | +2 | — |
| azure/gpt-35-turbo | 16K | $0.50/M | $0.10/M | — | — | — | |
| azure/gpt-4 | 128K | $30.00/M | $60.00/M | — | — | — | |
| azure/gpt-4-1106-preview | 128K | $10.00/M | $30.00/M | — | — | — | |
| azure/gpt-4-32k | 128K | $30.00/M | $60.00/M | — | — | — | |
| azure/gpt-4-vision-preview | 128K | $10.00/M | $30.00/M | — | — | — | |
| azure/gpt-4.1 | 1M | $2.00/M | $8.00/M | — | 6.4s | 123tps | |
| azure/gpt-4.1-mini | 1M | $0.40/M | $1.60/M | — | 1.6s | 44tps | |
| azure/gpt-4.1-nano | 1M | $0.10/M | $0.40/M | — | 2.5s | 97tps | |
| azure/gpt-4o | 128K | $2.50/M | $10.00/M | Read:$1.25/MWrite:— | — | — | |
| azure/gpt-4o-2024-08-06 | 128K | $2.50/M | $10.00/M | Read:$1.25/MWrite:— | — | — | |
| azure/gpt-4o-mini | 128K | $0.15/M | $0.60/M | Read:$0.07/MWrite:— | 1.1s | 2tps |
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Use Respan with your favorite frameworks and tools.