Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 2 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.
GPT-5.6 Terra is an OpenAI GPT-5.6 model that balances intelligence and cost, using the Responses API for reasoning and stateful context management.
Google's most capable Gemini 2.5 model with strong reasoning, thinking support, and a 1M token context window.
from openai import OpenAI
client = OpenAI(
base_url="https://api.aigateway.sh/v1",
api_key="sk-aig-...",
)
# GPT-5.6 Terra
client.chat.completions.create(
model="openai/gpt-5.6-terra",
messages=[{"role":"user","content":"hello"}],
)
# Gemini 2.5 Pro
client.chat.completions.create(
model="google/gemini-2.5-pro",
messages=[{"role":"user","content":"hello"}],
)