chore(pricing): Update openai pricing

[siddharthsambharia-portkey]

🔄 Pricing Update: openai

📊 Summary (complete_diff mode)

Change Type	Count
➕ Models added	0
🔄 Models updated (merged)	28

🔄 Updated Models

• gpt-5.4-pro
• gpt-5.4-pro-2026-03-05
• gpt-4.1-nano
• gpt-4.1-nano-2025-04-14
• o4-mini-deep-research-2025-06-26
• codex-mini-latest
• gpt-4o-mini-realtime-preview
• gpt-4o-mini-realtime-preview-2024-12-17
• gpt-4o-audio-preview
• gpt-4o-mini-audio-preview-2024-12-17
• gpt-realtime
• gpt-realtime-2025-08-28
• gpt-realtime-mini
• gpt-audio-mini
• gpt-4o-mini-tts
• gpt-4o-mini-tts-2025-03-20
• gpt-4o-mini-tts-2025-12-15
• gpt-4o-transcribe
• gpt-4o-mini-transcribe
• gpt-4o-search-preview
• gpt-4o-search-preview-2025-03-11
• gpt-4o-mini-search-preview
• gpt-4o-mini-search-preview-2025-03-11
• gpt-image-1
• chatgpt-image-latest
• gpt-image-1.5
• gpt-image-1-mini
• whisper-1

Data Sources

• Models API: get_openai_models tool — 128 model IDs returned
• Pricing Source: LiteLLM model_prices_and_context_window.json (used as fallback since platform.openai.com/docs/pricing returned HTTP 403 via Cloudflare)

Model Families Covered

Family	Count
GPT-5.4 (incl. mini, nano, pro)	8
GPT-5.3 (chat, codex)	2
GPT-5.2 (incl. codex, pro)	6
GPT-5.1 (incl. codex, codex-max, codex-mini)	6
GPT-5 (incl. mini, nano, pro, codex, search)	12
GPT-4.1 (incl. mini, nano)	6
GPT-4o (incl. mini, turbo, legacy)	9
GPT-4 / GPT-3.5	8
O-series (o1, o3, o4-mini, deep-research, pro)	14
Realtime (gpt-realtime, gpt-4o-realtime)	9
Audio (gpt-audio, gpt-4o-audio)	9
TTS / Transcribe / Whisper	9
Image (gpt-image-1, dall-e, sora)	7
Embeddings	3
Moderation	2
Legacy (babbage, davinci)	2
computer-use-preview, codex-mini-latest	3

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Generated by Pricing Agent on 2026-04-04