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Compare

Two or three models, side by side.

Rates, worked costs, limits and capabilities from the same data as every model page. Among the models you pick, the lowest price and the largest window are marked.

The comparison is in the address bar, so you can share it. Looking for something else? Browse all 11 models.

Comparison

ModelClaude Opus 5.5Anthropic · FlagshipGPT-6.1 SolOpenAI · FlagshipDeepSeek V4 FlashDeepSeek · FastNew
Price per 1M tokens
Input$4.40$2.20$0.24Lowest
Output$22.00$11.00$0.96Lowest
Cached input$0.22$0.11$0.0048Lowest
Output vs input5×5×4×
Example cost
1,000 chat replies (1.5k in, 400 out)$15.40$7.70$0.744Lowest
1M input + 200k output$8.80$4.40$0.432Lowest
Limits
Context window1M1.05MLargest1M
Max output128k128k384kLargest
Modalities
InputText, ImageText, ImageText
OutputTextTextText
Capabilities
ToolsYesYesYes
VisionYesYesNo
ReasoningYesYesYes
JSON modeNoYesYes
Structured outputYesYesNo
Prompt cachingYesYesYes
Access
API formatsAnthropic, OpenAIOpenAIOpenAI
Plan allowancesPro, Plus, MaxPro, Plus, MaxPro, Plus, Max
Released22 Sept 202629 Sept 202610 Sept 2026
LinksModel page for Claude Opus 5.5Try in Chat with Claude Opus 5.5Model page for GPT-6.1 SolTry in Chat with GPT-6.1 SolModel page for DeepSeek V4 FlashTry in Chat with DeepSeek V4 Flash

Rates in US dollars per 1M tokens; struck-through rates are the regular price during a promotion. Example costs use today's rates. Model your own traffic

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Every model here runs on the same key and balance, so you can start with one and change the model field when the work changes.