chore(pricing): Update openai pricing

[siddharthsambharia-portkey]

🔄 Pricing Update: openai

📊 Summary (complete_diff mode)

Change Type	Count
➕ Models added	0
🔄 Models updated (merged)	18

🔄 Updated Models

• gpt-4.1-nano
• gpt-4.1-nano-2025-04-14
• gpt-4o-mini-tts
• o4-mini-deep-research-2025-06-26
• codex-mini-latest
• gpt-realtime
• gpt-realtime-2025-08-28
• 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-image-1.5
• chatgpt-image-latest
• gpt-image-1
• gpt-image-1-mini
• sora-2-pro

Models Processed (130 total)

Batch	Family	Count
1	GPT-5.4, GPT-5.3, GPT-5.2 families	25
2	GPT-5.1, GPT-5, GPT-4.1, GPT-4o families	25
3	O-series (o1, o3, o4-mini, deep-research), computer-use, codex-mini, transcribe/TTS	24
4	Audio/Realtime (gpt-realtime, gpt-audio, gpt-4o-realtime/audio, gpt-4o-mini-realtime/audio)	22
5	Image models (gpt-image, chatgpt-image, dall-e, sora), TTS, whisper, embeddings, moderation	18
6	Legacy (gpt-4-turbo, gpt-4, gpt-3.5-turbo, davinci, babbage)	16

Pricing Sources

• Models API: https://api.openai.com/v1/models
• Pricing Page: https://platform.openai.com/docs/pricing (Standard tier)

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Generated by Pricing Agent on 2026-03-12