chore(pricing): Update openai pricing

[siddharthsambharia-portkey]

🔄 Pricing Update: openai

📊 Summary (complete_diff mode)

Change Type	Count
➕ Models added	0
🔄 Models updated (merged)	19

🔄 Updated Models

• gpt-4.1-nano
• gpt-4.1-nano-2025-04-14
• o4-mini-deep-research-2025-06-26
• gpt-realtime
• gpt-realtime-mini
• gpt-4o-mini-realtime-preview
• gpt-4o-mini-realtime-preview-2024-12-17
• gpt-audio-mini
• gpt-4o-audio-preview
• gpt-4o-mini-audio-preview-2024-12-17
• gpt-4o-mini-tts
• gpt-4o-transcribe
• gpt-4o-mini-transcribe
• whisper-1
• gpt-image-1.5
• chatgpt-image-latest
• gpt-image-1
• gpt-image-1-mini
• codex-mini-latest

Model-to-Pricing-Page Mapping

Batch	Models	Source
GPT-5.4/5.3/5.2 family	gpt-5.4, gpt-5.4-pro, gpt-5.3-chat-latest, gpt-5.3-codex, gpt-5.2, gpt-5.2-pro, gpt-5.2-codex, etc.	Standard tier
GPT-5.1/5/4.x/4o	gpt-5.1, gpt-5, gpt-5-mini, gpt-5-nano, gpt-5-pro, gpt-4.1, gpt-4o, etc.	Standard tier
O-series + Legacy GPT-4	o1, o1-pro, o3, o3-pro, o3-mini, o4-mini, deep-research variants, gpt-4-turbo, gpt-4, gpt-3.5	Standard tier
Audio/Realtime/Transcribe	gpt-realtime, gpt-audio, gpt-4o-realtime-preview, gpt-4o-mini-tts, gpt-4o-transcribe, etc.	Text + Audio token tables
Special/Image/Video/Embeddings	gpt-image-1.5, chatgpt-image-latest, gpt-image-1, dall-e-3, dall-e-2, sora-2, sora-2-pro, whisper-1, tts-1, embeddings, moderation	Image/Video/Transcription sections

Pricing source: https://platform.openai.com/docs/pricing (Standard tier, scraped fresh with maxAge: 0)

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Generated by Pricing Agent on 2026-03-09