asmhatreandClaude Sonnet 5.5
279be7eb9f
OpenAiAudioTranscriptionModel -> ChatClient.entity(Minutes.class) -> OpenAiAudioSpeechModel, WAV chunking at a silence under the 25 MB upload limit, SDK retry behaviour, the 4096-character speech limit and a cost model. Audio endpoints are a local mock and the chat model a stub; no real model was called. Spring Boot 4.1.2, Spring AI 2.0.2, Java 25. Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_01CifR2BE7PBvRy5hT8TS9oz
15 lines
1.0 KiB
Plaintext
15 lines
1.0 KiB
Plaintext
# Cost of one meeting, USD (prices of 2026-10-26; word and token counts are ASSUMPTIONS)
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assumptions: 150 words/minute spoken, 0.75 words/token, summary output 600 tokens, read-back 120 words
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prices : gpt-transcribe $0.0045/min | whisper-1 $0.006/min | gpt-4o-mini $0.15 in / $0.60 out per 1M | tts-1 $15 per 1M chars
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minutes words gpt-transc whisper-1 summary tts-1 total(gt)
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15 2,250 0.0675 0.0900 0.0008 0.0108 0.0791
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30 4,500 0.1350 0.1800 0.0013 0.0108 0.1471
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60 9,000 0.2700 0.3600 0.0022 0.0108 0.2830
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120 18,000 0.5400 0.7200 0.0040 0.0108 0.5548
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transcription is billed on audio duration, not file size: a 60-minute recording costs $0.2700 whatever its encoding.
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size of 60 minutes: 16 kHz mono 16-bit WAV = 115.2 MB | 64 kbit/s mp3 = 28.8 MB | 32 kbit/s mp3 = 14.4 MB
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minutes that fit in 25,000,000 bytes: WAV 13.0 | 64 kbit/s 52 | 32 kbit/s 104
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