Last refreshed 2026-05-22. Next refresh: weekly.
Why use o3 on Vercel AI Gateway?
Vercel AI Gateway offers o3 with pay-as-you-go pricing at $2.00/1M input tokens. Vercel AI Gateway is a unified AI proxy providing a single OpenAI-compatible API endpoint to 275+ models from 25+ providers including Anthropic, OpenAI, Google, Meta, Mistral, DeepSeek, xAI, Alibaba, Amazon, ByteDance, Cohere, MiniMax, MoonshotAI, KwaiPilot, Black Forest Labs, Recraft, Voyage AI, NVIDIA, and more.
Compare o3 across 3 providers to find the best fit for your use caseSetup recipe
Python + curlpip install openaiexport AI_GATEWAY_API_KEY=...import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],openai/o3Request example
import os
from openai import OpenAI
client = OpenAI(
api_key=os.environ["AI_GATEWAY_API_KEY"],
base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
model="openai/o3",
messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)Gotchas
- Use provider model ID "openai/o3", not the LLMReference slug "o3".
- creator/model-name e.g. kwaipilot/kat-coder-pro-v2
- The examples expect AI_GATEWAY_API_KEY; rename it only if your application config maps the new variable.
Compare o3 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenAI API | $2.00 | $8.00 |
| OpenRouter | $2.00 | $8.00 |
| Vercel AI Gateway | $2.00 | $8.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $2.00 |
| Output tokens | $8.00 |
| Query | $10.00 |
Capabilities
About o3
OpenAI o3 reasoning model with advanced multi-step problem-solving capabilities.
FAQ
What does o3 cost on Vercel AI Gateway?
On Vercel AI Gateway, o3 costs $2 per 1M input tokens and $8 per 1M output tokens.
What is the context window for o3 on Vercel AI Gateway?
o3 supports a 200,000 token context window on Vercel AI Gateway.
How does Vercel AI Gateway compare to other o3 providers?
o3 is available from 3 providers. The cheapest input pricing is $2.00/1M tokens from OpenAI API.
What API model ID do I use for o3 on Vercel AI Gateway?
Use the model ID openai/o3 when calling Vercel AI Gateway's API.
Who created o3?
o3 was created by OpenAI as part of the o3 model family.
Is o3 open source?
o3 is not open source; the seed data lists it as proprietary.