Compare GPT 4o Transcribe Diarize from OpenAI and Grok 4.5 from Grok on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
GPT 4o Transcribe Diarize
Grok 4.5GPT-4o Transcribe Diarize is an automatic speech recognition (ASR) model with built-in speaker diarization, meaning it can associate audio segments in a conversation with different speakers.
Grok 4.5 was trained on datasets spanning knowledge in coding, science, engineering, and math. With both intelligent and efficient reasoning, Grok 4.5 excels at real engineering tasks and exceeds comparable leading models at these tasks.
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
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Grok 4.5: $6.00/M output tokens; GPT 4o Transcribe Diarize: $10.00/M. Use the cost calculator above to estimate your own workload.
GPT 4o Transcribe Diarize accepts 16,000 and Grok 4.5 accepts 500,000 input tokens. Maximum output per request is 2,000 tokens on GPT 4o Transcribe Diarize and 500,000 tokens on Grok 4.5.
GPT 4o Transcribe Diarize accepts text and audio input and supports thinking, function calling and structured outputs; Grok 4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.
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