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Merge pull request #3564 from shladnik/auto_openrouter

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OpenRouter models parameters fetching directly from their website
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paul-gauthier 2025-05-07 18:23:02 -07:00 • committed by GitHub
commit 582da0ee44
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aider/models.py
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@ -231,9 +231,58 @@ class ModelInfoManager:
if litellm_info:
return litellm_info
if not cached_info and model.startswith("openrouter/"):
openrouter_info = self.fetch_openrouter_model_info(model)
if openrouter_info:
return openrouter_info
return cached_info
def fetch_openrouter_model_info(self, model):
"""
Fetch model info by scraping the openrouter model page.
Expected URL: https://openrouter.ai/<model_route>
Example: openrouter/qwen/qwen-2.5-72b-instruct:free
Returns a dict with keys: max_tokens, max_input_tokens, max_output_tokens, input_cost_per_token, output_cost_per_token.
"""
url_part = model[len("openrouter/"):]
url = "https://openrouter.ai/" + url_part
try:
import requests
response = requests.get(url, timeout=5, verify=self.verify_ssl)
if response.status_code != 200:
return {}
html = response.text
import re
if re.search(rf'The model\s*.*{re.escape(url_part)}.* is not available', html, re.IGNORECASE):
print(f"\033[91mError: Model '{url_part}' is not available\033[0m")
return {}
text = re.sub(r'<[^>]+>', ' ', html)
context_match = re.search(r"([\d,]+)\s*context", text)
if context_match:
context_str = context_match.group(1).replace(",", "")
context_size = int(context_str)
else:
context_size = None
input_cost_match = re.search(r"\$\s*([\d.]+)\s*/M input tokens", text, re.IGNORECASE)
output_cost_match = re.search(r"\$\s*([\d.]+)\s*/M output tokens", text, re.IGNORECASE)
input_cost = float(input_cost_match.group(1)) / 1000000 if input_cost_match else None
output_cost = float(output_cost_match.group(1)) / 1000000 if output_cost_match else None
if context_size is None or input_cost is None or output_cost is None:
return {}
params = {
"max_input_tokens": context_size,
"max_tokens": context_size,
"max_output_tokens": context_size,
"input_cost_per_token": input_cost,
"output_cost_per_token": output_cost,
}
return params
except Exception as e:
print("Error fetching openrouter info:", str(e))
return {}
model_info_manager = ModelInfoManager()