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Overview

Vercel AI Gateway provides an OpenAI-compatible API at https://ai-gateway.vercel.sh/v1, routing to multiple backends. Model Class: VercelModel

Authentication

export VERCEL_AI_GATEWAY_API_KEY="..."   # Or VERCEL_OIDC_TOKEN

Examples

from upsonic import Agent, Task
from upsonic.models.vercel import VercelModel

model = VercelModel(model_name="anthropic/claude-opus-4.6")
agent = Agent(model=model)

task = Task("Hello, how are you?")
result = agent.do(task)
print(result)

Model Settings

You can set model parameters in two ways: on the model or on the Agent. On the model:
from upsonic import Agent, Task
from upsonic.models.vercel import VercelModel, VercelModelSettings

model = VercelModel(
    model_name="anthropic/claude-opus-4.6",
    settings=VercelModelSettings(max_tokens=1024, temperature=0.7)
)
agent = Agent(model=model)
On the Agent:
from upsonic import Agent, Task
from upsonic.models.vercel import VercelModelSettings

agent = Agent(
    model="vercel/anthropic/claude-opus-4.6",
    settings=VercelModelSettings(max_tokens=1024, temperature=0.7)
)

Parameters

ParameterTypeDescriptionDefaultSource
max_tokensintMaximum tokens to generateModel defaultBase
temperaturefloatSampling temperature (0.0-2.0)1.0Base
top_pfloatNucleus sampling1.0Base
seedintRandom seedNoneBase
stop_sequenceslist[str]Stop sequencesNoneBase
presence_penaltyfloatToken presence penalty0.0Base
frequency_penaltyfloatToken frequency penalty0.0Base
parallel_tool_callsboolAllow parallel toolsTrueBase
timeoutfloatRequest timeout (seconds)600Base