Head to head

GPT-6 Astra vs Claude Fable 5.1

Price, context, inputs and filters. No benchmarks theatre.

Both cost about the same per message.

Both hold the same amount of context.

Fact

Made by

OpenAI

Anthropic

Content tier

Mainstream

Intelligence

Brilliant

Price per message

~30.55 credits≈ 3 messages for 1 €

Context window

1.1M tokens≈ 1,615 pages of text in one go

1M tokens≈ 1,538 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

Current

Legacy

A typical message: 16K tokens in, 1.5K out. Short replies cost less. 1 credit = 0.01 €.