Is GPT-5 Chat available on FastMetal?

Not at the moment. GPT-5.6 Sol, from the same lab, is available on the FastMetal API today.

What is the context window of GPT-5 Chat?

128,000 tokens, shared between the prompt and the response.

#46 on the public arena's Japanese board (ELO 1,432). Ranks move as the leaderboard is updated.

openai/gpt-5-chat

Not Available

GPT-5 Chat is designed for advanced, natural, multimodal, and context-aware conversations for enterprise applications.

8/7/2025

128,000 tokens

#46 Text (Japanese)

Input

file

image

text

Output

text

max_tokens

response_format

seed

structured_outputs

16,384

Is GPT-5 Chat available on FastMetal?: Not at the moment. GPT-5.6 Sol, from the same lab, is available on the FastMetal API today.
What is the context window of GPT-5 Chat?: 128,000 tokens, shared between the prompt and the response.
How does GPT-5 Chat rank?: #46 on the public arena's Japanese board (ELO 1,432). Ranks move as the leaderboard is updated.