All models
Head to head

Claude Fable 5 vs Claude Opus 5.5

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

Claude Opus 5.5 costs 2.5× less per message.

Both hold the same amount of context.

MainstreamChat with Claude Fable 5
MainstreamChat with Claude Opus 5.5
Made by
Anthropic
Anthropic
Content tier
Mainstream
Mainstream
Intelligence
Brilliant
Brilliant
Estimated price per message
~30.55 credits≈ 3 messages for $1
~12.22 credits≈ 8 messages for $1
Context window
1M tokens≈ 1,538 pages of text in one go
1M tokens≈ 1,538 pages of text in one go
Reads
Text, Images
Text, Images
Writes
Text
Text
Tool use
Yes - search, memory, code and more
Yes - search, memory, code and more
Served via
OpenRouter, Unbottled AI
OpenRouter, Unbottled AI
Status
Legacy
Current

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.