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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. Gemini 3.5 TranscribeGoogleRemove
  2. GPT-6 Luna ProOpenAIRemove
  3. S1Fish AudioRemove
  4. Claude Opus 5.5AnthropicRemove

4 is the maximum. Remove one to add another.

gemini-3.5-transcribe vs gpt-6-luna-pro vs s1 vs claude-opus-5.5
AttributeGemini 3.5 Transcribegemini-3.5-transcribeGPT-6 Luna Progpt-6-luna-proS1s1Claude Opus 5.5claude-opus-5.5
Pricing
Input$0 / 1M$0.10 / 1M$0 / 1M$4.00 / 1M
Output$0 / 1M$0.50 / 1M$0 / 1M$20.00 / 1M
Cache Write (5m)Not applicable$0.10 / 1MNot applicable$5.00 / 1M
Cache Write (1h)Not applicable$0.10 / 1MNot applicable$8.00 / 1M
Cache ReadNot applicable$0.10 / 1MNot applicable$0.40 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context98.3K1.1MN/A1M
Max outputN/AN/AN/AN/A
Capabilities
VisionYesYesNoYes
Function CallingYesYesNoYes
JSON ModeNoYesNoYes
StreamingNoYesNoYes
Catalogue
ProviderGoogleOpenAIFish AudioAnthropic
Categoryvoicechatvoicechat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released2026-09-25—2026-07-29—
Description
SummaryGoogle Gemini 3.5 Transcribe speech-to-text. Billed per input and output token.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.Fish Audio S1 text-to-speech. Billed per UTF-8 byte of input text.Claude Opus 5.5 is Anthropic's flagship model for advanced reasoning, coding, and long-horizon agentic workflows, succeeding Opus 5. It excels at multi-step changes across large codebases, code review and bug detection, financial and scientific analysis, and understanding dense charts, diagrams, and screenshots, with stronger grounding when reporting figures and citing sources. Compared with Opus 5, it completes comparable tasks with fewer steps and lower token usage while providing clearer, more concise progress reporting. With adaptive thinking and configurable effort levels, Opus 5.5 can balance reasoning depth, latency, and cost, making it well suited for both demanding autonomous workflows and latency-sensitive professional tasks.