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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 Mini TTSOpenAIRemove
  2. Muse Spark 1.3MetaRemove
gpt-4o-mini-tts-2025-12-15 vs muse-spark-1.3
AttributeGPT-4o Mini TTSgpt-4o-mini-tts-2025-12-15Muse Spark 1.3muse-spark-1.3
Pricing
Input$0.30 / 1M$1.25 / 1M
Output$0 / 1M$4.25 / 1M
Cache Write (5m)Not applicable$1.25 / 1M
Cache Write (1h)Not applicable$1.25 / 1M
Cache ReadNot applicable$1.25 / 1M
Web Search$0 / 1M$0 / 1M
Context
Max context4.1K1M
Max outputN/AN/A
Capabilities
VisionNoYes
Function CallingNoYes
JSON ModeYesYes
StreamingNoYes
Catalogue
ProviderOpenAIMeta
Categoryvoicechat
Charge typePay As You GoPay As You Go
Released
Description
SummaryGPT-4o Mini TTS is OpenAI's cost-efficient text-to-speech model, designed to convert text into natural-sounding audio output. It supports a variety of voices and tones, enabling flexible and expressive speech generation. Optimized for scalability and low cost, it is well suited for real-time voice applications, content narration, and high-volume audio generation workflows.Muse Spark 1.3 is Meta's multimodal reasoning model designed for long-running agentic, multi-agent, and coding workflows. It maintains context and information across extended tasks, enabling reliable execution in complex, multi-step environments. The model is optimized to resolve conflicting information, seek clarification or confirmation when necessary, and execute concisely, making it well suited for autonomous agents, collaborative multi-agent systems, and long-horizon software engineering workflows.