All models
OpenAI

GPT-5.4

The OpenAI model that folded Codex-grade coding into the main GPT line, with 1M context and image input. Solid for long documents, code and analysis. GPT-6.1 Sol is newer, rated a tier higher and cheaper per message, so there is little reason to stay.

MainstreamThe big labs' models with their own safety filters. Best for work, code and research.
Smart & Cheap
Intelligence
~8.13 credits
Estimated price per message
1.1M tokens
Context window
Text, Images
Reads

GPT-5.4 is a legacy model. Its successor, GPT-6.1 Sol, is faster or cheaper - and chats that used GPT-5.4 move to it automatically.

See GPT-6.1 Sol

The facts

Made by
OpenAI
Content tier
MainstreamThe big labs' models with their own safety filters. Best for work, code and research.
Intelligence
Smart & Cheap
Estimated price per message
~8.13 credits≈ 12 messages for 1 €
Context window
1.1M tokens≈ 1,615 pages of text in one go
Reads
Text, Images
Writes
Text
Tool use
Yes - search, memory, code and more
Served via
OpenRouter, Unbottled AI
Status
Legacy

A typical message: 16K tokens in, 1.5K out. Short replies cost less. Models served via OpenRouter bill the real provider cost plus our markup, so actual charges vary. 1 credit = 0.01 €.

Try GPT-5.4 now.

No subscription. Free credits to start. The chat opens with GPT-5.4 selected and a prompt ready - just send.