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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. Claude Sonnet 5.5AnthropicRemove
  2. Gemini 2.5 Flash Preview (thinking)GoogleRemove
  3. GPT-6 Luna ProOpenAIRemove
claude-sonnet-5.5 vs gemini-2.5-flash-preview:thinking vs gpt-6-luna-pro
AttributeClaude Sonnet 5.5claude-sonnet-5.5Gemini 2.5 Flash Preview (thinking)gemini-2.5-flash-preview:thinkingGPT-6 Luna Progpt-6-luna-pro
Pricing
Input$2.00 / 1M$0.075 / 1M$0.10 / 1M
Output$10.00 / 1M$1.75 / 1M$0.50 / 1M
Cache Write (5m)$2.50 / 1M$0.075 / 1M$0.10 / 1M
Cache Write (1h)$4.00 / 1M$0.075 / 1M$0.10 / 1M
Cache Read$0.20 / 1M$0.075 / 1M$0.10 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M
Context
Max context1M1.0M1.1M
Max outputN/AN/AN/A
Capabilities
VisionYesYesYes
Function CallingYesYesYes
JSON ModeYesYesYes
StreamingYesYesYes
Catalogue
ProviderAnthropicGoogleOpenAI
Categorychatchatchat
Charge typePay As You GoPay As You GoPay As You Go
Released———
Description
SummaryClaude 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.Gemini 2.5 Flash Preview (May 2025) is Google's high-performance general model built for advanced reasoning, coding, math, and science. It includes built-in “thinking” features to deliver more accurate, context-aware answers.GPT-6 Luna Pro uses the same underlying model as GPT-6 Luna, but runs with reasoning.mode set to pro for higher-quality responses on complex tasks. It combines Luna's speed and cost efficiency with deeper reasoning and more reliable multi-step execution, making it well suited for advanced coding, computer use, and agentic workflows where higher solution quality is needed without moving to a larger GPT-6 tier.