feat(models): add FutureInfra OpenAI-compatible model wrapper

[uxidev]

This PR adds a FutureInfra model wrapper.
It follows the Cheaper Inference wrapper from #1158 and the Atlas Cloud wrapper from #1104.

FutureInfra (https://futureinfra.ai/) is a cloud provider with an OpenAI-compatible AI API router.
Its base URL is https://futureinfra.ai/v1/ai. Model ids use the provider/model format, e.g. openai/gpt-4o-mini.

Changes

• Add scrapegraphai/models/futureinfra.py. It is a ChatOpenAI subclass with a fixed base URL.
• Export FutureInfra from scrapegraphai.models.
• Add a futureinfra entry with two models to models_tokens.py (openai/gpt-4o-mini and openai/gpt-4o, 128000 each, as reported by the context_length field of the public GET https://futureinfra.ai/v1/ai/models endpoint).
• Add tests/test_futureinfra_model.py.

Usage

import os

from scrapegraphai.graphs import SmartScraperGraph
from scrapegraphai.models import FutureInfra

llm = FutureInfra(api_key=os.getenv("FUTUREINFRA_API_KEY"), model="openai/gpt-4o-mini")

graph_config = {
    "llm": {"model_instance": llm, "model_tokens": 128000},
}

Testing

• pytest tests/test_futureinfra_model.py tests/test_cheaperinference_model.py tests/test_atlascloud_model.py --no-cov: 6 passed.
• ruff check passes on the changed files. black --check and isort --check-only pass on the new files.
• Live call test not attached (no API key used).

Details

• Base branch: pre/beta.
• This PR does not register the provider in abstract_graph.py. This matches Add Atlas Cloud OpenAI-compatible model wrapper #1104 and feat(models): add Cheaper Inference OpenAI-compatible model wrapper #1158.
• The Test Suite workflow runs a fixed list of test files. This PR does not change the workflow. A maintainer can add tests/test_futureinfra_model.py to the list.
• black --check reports scrapegraphai/models/__init__.py. The __all__ line is already too long on pre/beta.
• ruff check scrapegraphai tests reports 6 F401 errors in batch_generate_answer_node.py and batch_api.py. They are already on pre/beta. This PR does not change those files.
• Tests ran in a local uv venv with the locked versions of langchain-openai, pytest, ruff, black and isort (not a full uv sync).
• This change was drafted with Claude Code and reviewed before submission.

🤖 Generated with Claude Code