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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. GPT-4o Audio PreviewOpenAIRemove
  2. Claude Fable 5.1AnthropicRemove
  3. GLM 5.3Z.AIRemove
gpt-4o-audio-preview vs claude-fable-5.1 vs glm-5.3
AttributeGPT-4o Audio Previewgpt-4o-audio-previewClaude Fable 5.1claude-fable-5.1GLM 5.3glm-5.3
Pricing
Input$0.875 / 1M$10.00 / 1M$1.40 / 1M
Output$3.50 / 1M$50.00 / 1M$4.40 / 1M
Cache Write (5m)Not applicable$12.50 / 1M$1.40 / 1M
Cache Write (1h)Not applicable$20.00 / 1M$1.40 / 1M
Cache ReadNot applicable$1.00 / 1M$1.40 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M
Context
Max context128K1M1M
Max outputN/AN/AN/A
Capabilities
VisionNoYesNo
Function CallingNoYesYes
JSON ModeNoYesYes
StreamingYesYesYes
Catalogue
ProviderOpenAIAnthropicZ.AI
Categoryvoicechatchat
Charge typePay As You GoPay As You GoPay As You Go
Released
Description
Summarygpt-4o-audio-preview adds support for audio inputs, allowing the model to understand nuances in audio recordings and enrich responses. It currently does not generate audio outputs, and audio input is billed per million audio tokens.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.GLM-5.3 is Z.ai's large-scale reasoning model designed for complex software engineering and long-horizon agentic workflows. It supports text input and output with a 1M-token context window, enabling sustained reasoning across large codebases and extended multi-step tasks. Building on GLM-5.2, it delivers stronger coding performance while improving the balance between capability and token efficiency, making it well suited for autonomous coding agents, large-scale engineering workflows, and complex task execution.