OpenAI: GPT-5
Original GPT-5 workhorse for reasoning, coding, writing, and tool workflows
- Model lab
- OpenAI
- Model family
- gpt
Quickstart
Use your Moduck API Key, set the API base URL to https://api.moduck.ai/v1, and set the model parameter to openai/gpt-5.
import os
import requests
base_url = "https://api.moduck.ai/v1"
api_key = os.environ["MODUCK_API_KEY"]
model_id = "openai/gpt-5"
response = requests.post(
f"{base_url}/chat/completions",
headers={
"Authorization": f"Bearer {api_key}",
"Content-Type": "application/json",
},
json={
"model": model_id,
"messages": [{"role": "user", "content": "Hello!"}],
"stream": False,
},
timeout=60,
)
response.raise_for_status()
print(response.json())Use the familiar OpenAI-style chat request format to make model integration easier.
GPT-5 API Pricing
| Type | Price information |
|---|---|
| Input | USD 1 / 1M tokens |
| Output | USD 8 / 1M tokens |
| Cached input | USD 0.1 / 1M tokens |
Benchmarks
High
Low
Medium
Performance
| Measurement variant | Output speed | Time to first token | Time to first answer token | End-to-end response time |
|---|---|---|---|---|
| High | 98.1 tokens/s | 64.34 s | — | — |
| Low | 84.64 tokens/s | 7.52 s | — | — |
| Medium | 107.49 tokens/s | 25.29 s | — | — |
Performance trends
Availability
GPT-5 Compare models
| Model | Input price | Output price | Context window | Capabilities |
|---|---|---|---|---|
| GPT-5This page | USD 1 / 1M tokens | USD 8 / 1M tokens | 400,000 | Text output · Reasoning · Tool calling |
| GPT-5.6 Cyber | USD 10 / 1M tokens | USD 60 / 1M tokens | 400,000 | Text output · Reasoning · Tool calling |
| GPT-5.3 Chat (latest) | USD 1.4 / 1M tokens | USD 11.2 / 1M tokens | 128,000 | Text output · Tool calling |
| GPT-5.2 | USD 0.7 / 1M tokens · Service tier flex | USD 5.6 / 1M tokens · Service tier flex | 400,000 | Text output · Reasoning · Tool calling |
| GPT-5.1 | USD 0.5 / 1M tokens · Service tier flex | USD 4 / 1M tokens · Service tier flex | 400,000 | Text output · Reasoning · Tool calling |
Model specifications
- Input
- text, image
- Output
- text
- Context window
- 400,000
- Maximum input
- 272,000
- Maximum output
- 128,000
- Release date
- 2025-08-07
- Attachments
- Yes
- Reasoning
- Yes
- Tool calling
- Yes
- Structured output
- Yes
- Temperature setting
- No
- Open weights
- No
Frequently asked questions
What is GPT-5 for?
Original GPT-5 workhorse for reasoning, coding, writing, and tool workflows
What inputs and outputs does GPT-5 support?
Recorded inputs: text, images; outputs: text.
How is GPT-5 priced?
The pricing table shows the current recorded Moduck price. For example: Input USD 1 / 1M tokens; Output USD 8 / 1M tokens. See the pricing table for all units, variants, and conditions.
What specifications are recorded for GPT-5?
Current model records list Context window 400,000 tokens; Maximum output 128,000 tokens.
What model parameter does the Quickstart use?
The example uses openai/gpt-5. This value comes from the page identifier and is not confirmed as a callable Moduck public ID.
Can I call this model through the Moduck API now?
This page has no verified Moduck API call for this model. A Quickstart example or reserved ID does not establish access; check the models available to your account.