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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. Aura-2DeepgramRemove
  2. GPT-6 LunaOpenAIRemove
  3. Claude Sonnet 5.5AnthropicRemove
aura-2 vs gpt-6-luna vs claude-sonnet-5.5
AttributeAura-2aura-2GPT-6 Lunagpt-6-lunaClaude Sonnet 5.5claude-sonnet-5.5
Pricing
Input$0 / 1M$0.10 / 1M$2.00 / 1M
Output$0 / 1M$0.50 / 1M$10.00 / 1M
Cache Write (5m)Not applicable$0.10 / 1M$2.50 / 1M
Cache Write (1h)Not applicable$0.10 / 1M$4.00 / 1M
Cache ReadNot applicable$0.10 / 1M$0.20 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M
Context
Max contextN/A1.1M1M
Max outputN/AN/AN/A
Capabilities
VisionNoYesYes
Function CallingNoYesYes
JSON ModeNoYesYes
StreamingNoYesYes
Catalogue
ProviderDeepgramOpenAIAnthropic
Categoryvoicechatchat
Charge typePay As You GoPay As You GoPay As You Go
Released2026-07-16——
Description
SummaryDeepgram Aura-2 text-to-speech for real-time voice applications. Billed per input character.GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, optimized for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic tasks. It combines low-cost, responsive inference with the GPT-6 family’s improvements in factual reliability and clear, concise communication. At higher reasoning effort, GPT-6 Luna can also handle complex software engineering and computer-use workflows that previously required a Sol-tier model, making it a versatile choice for scalable production applications that need to balance speed, cost, and capability.Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, serving as a direct upgrade to Sonnet 5. It excels at feature development, bug fixing, and creating polished documents, presentations, and spreadsheets, while offering clearer writing and communication than its predecessor.