Add "penrouter/openai/gpt-5-chat" in "model_prices_and_context_window.json"

[JoFo-IT]

Source: https://openrouter.ai/openai/gpt-5-chat

We need to update both model_prices_and_context_window.json and model_prices_and_context_window_backup.json to reflect the new model.

---

Total Context	Max Output	Input Price	Output Price	Cache Read	Cache Write
400K	128K	$1,25	$10	$0,125	--

[superpoussin22]

already set no ?

"gpt-5-chat": {
"max_tokens": 128000,
"max_input_tokens": 400000,
"max_output_tokens": 128000,
"input_cost_per_token": 1.25e-06,
"output_cost_per_token": 1e-05,
"cache_read_input_token_cost": 1.25e-07,
"litellm_provider": "openai",
"mode": "chat",
"supported_endpoints": [
"/v1/chat/completions",
"/v1/batch",
"/v1/responses"
],
"supported_modalities": [
"text",
"image"
],
"supported_output_modalities": [
"text"
],
"supports_pdf_input": true,
"supports_function_calling": false,
"supports_parallel_function_calling": false,
"supports_response_schema": true,
"supports_vision": true,
"supports_prompt_caching": true,
"supports_system_messages": true,
"supports_tool_choice": false,
"supports_native_streaming": true,
"supports_reasoning": true
},

[JoFo-IT]

My request had the wrong title.

[github-actions]

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