Skip to content
Apertis
Get started

Compare models

Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. Llama 3.2 3B InstructMetaRemove
  2. Claude Fable 5.1AnthropicRemove
  3. GPT-6 Astra ProOpenAIRemove
llama-3.2-3b-instruct vs claude-fable-5.1 vs gpt-6-astra-pro
AttributeLlama 3.2 3B Instructllama-3.2-3b-instructClaude Fable 5.1claude-fable-5.1GPT-6 Astra Progpt-6-astra-pro
Pricing
Input$0.324 / 1M$10.00 / 1M$10.00 / 1M
Output$0.324 / 1M$50.00 / 1M$50.00 / 1M
Cache Write (5m)$0.324 / 1M$12.50 / 1M$10.00 / 1M
Cache Write (1h)$0.324 / 1M$20.00 / 1M$10.00 / 1M
Cache Read$0.324 / 1M$1.00 / 1M$10.00 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M
Context
Max context131.1K1M1M
Max outputN/AN/AN/A
Capabilities
VisionNoYesYes
Function CallingNoYesYes
JSON ModeNoYesYes
StreamingNoYesYes
Catalogue
ProviderMetaAnthropicOpenAI
Categorychatchatchat
Charge typePay As You GoPay As You GoPay As You Go
Released———
Description
Summary—Claude Fable 5.1 is an upgraded version of Fable 5, delivering broad improvements with particularly strong gains in agentic coding, long-running workflows, and professional knowledge work. It excels at large code refactors, front-end and visual code generation, financial analysis, and complex analytical tasks. Compared with Fable 5, it also produces more concise plans and summaries while maintaining strong performance across extended tasks, making it a natural upgrade for existing Fable workflows and a strong option alongside Opus 5 for reasoning-intensive applications.GPT-6 Astra Pro uses the same underlying model as GPT-6 Astra, but runs with reasoning.mode set to pro for higher-quality responses on complex tasks. Optimized for deeper reasoning, greater accuracy, and more reliable multi-step execution, it is well suited for demanding coding, analysis, and agentic workflows where solution quality takes priority over speed and cost.