chore(pricing): Update openai pricing

[siddharthsambharia-portkey]

🔄 Pricing Update: openai

📊 Summary

Change Type	Count
➕ Models added	2
🔄 Prices updated	5

➕ New Models

• gpt-4-16k
• gpt-image-1.5-mini

🔄 Updated Models (price changes)

Model	Request (old → new)	Response (old → new)
o4-mini-deep-research-2025-06-26	0.0002 → 0.0002	0.004 → 0.0008
gpt-image-1.5	— → 0.0005	— → 0.001
gpt-image-1	— → 0.0005	— → 0
dall-e-3	— → 0	— → 0
dall-e-2	— → 0	— → 0

Models Processed (132 total)

Pricing Sources

• Models API: 128 models (ft:* excluded)
• Pricing Page: https://platform.openai.com/docs/pricing (Standard tier)

Model Families Covered

Batch	Family	Count
1	GPT-5.4, GPT-5.3, GPT-5.2 (incl. pro, codex, chat-latest variants)	25
2	GPT-5.1, GPT-5, GPT-5-mini/nano/search, GPT-4.1, GPT-4o, GPT-4-turbo	25
3	O-series (o1, o3, o4-mini, deep-research, pro), computer-use, codex-mini, legacy GPT-4	25
4	Realtime (gpt-realtime, gpt-4o-realtime), audio (gpt-audio, gpt-4o-audio)	22
5	Image (gpt-image, chatgpt-image, dall-e), Sora video, TTS, transcription, whisper, embeddings	25
6	Moderation (free), legacy GPT-3.5, davinci-002, babbage-002	10

Special Pricing Notes

• Audio/Realtime models: Include both text token prices AND audio token prices (request_audio_price / response_audio_price)
• TTS models: Priced per million characters, not tokens
• Sora: Priced per second of video output
• Image models: Per-image pricing with quality tiers (low/medium/high)
• Moderation: Free ($0)
• gpt-5.4 / gpt-5.4-pro: Two-tier pricing — standard (<272K context) and extended (>272K context at 2x input / 1.5x output)

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Generated by Pricing Agent on 2026-03-07