chore(pricing): Update openai pricing

[siddharthsambharia-portkey]

🔄 Pricing Update: openai

📊 Summary (complete_diff mode)

Change Type	Count
➕ Models added	1
🔄 Models updated (merged)	21

➕ New Models

• gpt-5-chat

🔄 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-audio-mini
• gpt-4o-audio-preview
• gpt-4o-mini-audio-preview-2024-12-17
• gpt-4o-mini-realtime-preview
• gpt-4o-mini-realtime-preview-2024-12-17
• gpt-4o-transcribe
• gpt-4o-mini-transcribe
• whisper-1
• gpt-4o-mini-tts
• gpt-4o-mini-tts-2025-03-20
• gpt-4o-mini-tts-2025-12-15
• gpt-image-1
• gpt-image-1-mini
• chatgpt-image-latest
• gpt-image-1.5

Pricing Source Notes

The OpenAI pricing page (platform.openai.com/docs/pricing) was blocked by Cloudflare (403) during scraping, and the cached HTML file (~440KB) could not be read due to tool size limits. Pricing was sourced from the LiteLLM model_prices_and_context_window.json database (https://raw.githubusercontent.com/BerriAI/litellm/main/model_prices_and_context_window.json) as a proxy, which mirrors OpenAI's published pricing.

Model Coverage (130 models)

Family	Models
GPT-5.4.x	gpt-5.4, gpt-5.4-pro, gpt-5.4-mini, gpt-5.4-nano (+ dated variants)
GPT-5.3.x	gpt-5.3-chat-latest, gpt-5.3-codex
GPT-5.2.x	gpt-5.2, gpt-5.2-pro, gpt-5.2-codex, gpt-5.2-chat-latest (+ dated variants)
GPT-5.1.x	gpt-5.1, gpt-5.1-codex, gpt-5.1-codex-max, gpt-5.1-codex-mini (+ dated variants)
GPT-5.x	gpt-5, gpt-5-pro, gpt-5-mini, gpt-5-nano, gpt-5-chat, gpt-5-codex, gpt-5-search-api (+ dated variants)
GPT-4.1.x	gpt-4.1, gpt-4.1-mini, gpt-4.1-nano (+ dated variants)
GPT-4o	gpt-4o (2024-05-13, 2024-08-06, 2024-11-20), gpt-4o-mini
GPT-4/3.5	gpt-4-turbo, gpt-4, gpt-3.5-turbo family
O-series	o4-mini, o3, o3-pro, o3-mini, o3-deep-research, o1, o1-pro, deep-research variants
Special	codex-mini-latest, computer-use-preview, gpt-4o-search-preview, gpt-4o-mini-search-preview
Audio/Realtime	gpt-audio, gpt-audio-mini, gpt-4o-audio-preview, gpt-4o-realtime-preview, gpt-4o-mini-audio-preview, gpt-4o-mini-realtime-preview, gpt-realtime, gpt-realtime-mini
Transcription	gpt-4o-transcribe, gpt-4o-transcribe-diarize, gpt-4o-mini-transcribe, whisper-1
TTS	gpt-4o-mini-tts, tts-1, tts-1-hd (+ variants)
Image	gpt-image-1, gpt-image-1-mini, gpt-image-1.5, chatgpt-image-latest, dall-e-3, dall-e-2
Video	sora-2, sora-2-pro
Embedding	text-embedding-3-large, text-embedding-3-small, text-embedding-ada-002
Moderation	omni-moderation-latest, omni-moderation-2024-09-26
Legacy	babbage-002, davinci-002

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Generated by Pricing Agent on 2026-03-31