Free AI Tools

Tools to help you compare, choose, and budget for AI models.

Token Cost Calculator

Calculate the exact cost of your API calls across all models. Enter your token count, see the price.

Context Window Comparison

See how many words, pages, and books fit in each model's context window. Visual comparison.

API Monthly Cost Estimator

Estimate your monthly API spend based on daily usage patterns. Compare costs across models.

Prompt Cost Calculator

Paste your prompt text and see exactly what it costs across every AI model. Instant cost breakdown.

Best AI Model For...

Data-backed recommendations for 16 common use cases. Which model should you actually use?

Best for CodingCode generation, debugging, refactoring, and code review. Mo...Best for Creative WritingBlog posts, marketing copy, stories, and long-form content. ...Best for Data AnalysisAnalyzing datasets, extracting insights, generating reports,...Best for Customer SupportAutomated customer service, FAQ answering, ticket routing. N...Best for SummarizationSummarizing long documents, reports, meetings, and articles....Best for TranslationTranslating text between languages, localizing content, and ...Best for Math & ScienceSolving math problems, scientific analysis, physics simulati...Best for ChatbotGeneral-purpose conversational AI for apps, websites, and pr...Best for Code ReviewReviewing pull requests, finding bugs, security vulnerabilit...Best for VisionAnalyzing images, charts, screenshots, documents, and visual...Best for RAGRetrieval-augmented generation for answering questions from ...Best for AgentsBuilding autonomous agents that use tools, browse the web, e...Best for LegalAnalyzing contracts, legal briefs, regulatory documents, and...Best for EducationTutoring students, explaining concepts, generating exercises...Best for SQL/DatabaseGenerating SQL queries, database optimization, schema design...Best for Email WritingDrafting emails, business proposals, reports, and profession...

Model Alternatives

Thinking about switching? See the best alternatives for each of the 26 models we track.

Claude Opus 4.6 AlternativesAnthropic · $5/$25 per 1M Claude Sonnet 4.6 AlternativesAnthropic · $3/$15 per 1M Claude Sonnet 4.5 AlternativesAnthropic · $3/$15 per 1M Claude Haiku 4.5 AlternativesAnthropic · $0.8/$4 per 1M GPT-5.3 Codex AlternativesOpenAI · $2/$16 per 1M GPT-5.2 Codex AlternativesOpenAI · $1.75/$14 per 1M GPT-5 AlternativesOpenAI · $1.25/$10 per 1M GPT-4o AlternativesOpenAI · $2.5/$10 per 1M GPT-4o Mini AlternativesOpenAI · $0.15/$0.6 per 1M o4-mini AlternativesOpenAI · $1.1/$4.4 per 1M o3 AlternativesOpenAI · $0.4/$1.6 per 1M Gemini 3.1 Pro AlternativesGoogle · $2/$12 per 1M Gemini 3 Pro AlternativesGoogle · $2/$12 per 1M Gemini 3 Flash AlternativesGoogle · $0.5/$3 per 1M Gemini 2.5 Pro AlternativesGoogle · $1.25/$10 per 1M Gemini 2.5 Flash AlternativesGoogle · $0.15/$0.6 per 1M Llama 4 Maverick AlternativesMeta · $0.31/$0.85 per 1M Llama 4 Scout AlternativesMeta · $0.18/$0.63 per 1M DeepSeek V3 AlternativesDeepSeek · $0.14/$0.28 per 1M DeepSeek R1 AlternativesDeepSeek · $0.55/$2.19 per 1M Grok 4 AlternativesxAI · $3/$15 per 1M GLM-5 AlternativesZhipu AI · $1/$3.2 per 1M GLM-4.7 AlternativesZhipu AI · $0.6/$2.2 per 1M MiniMax M2.5 AlternativesMiniMax · $0.3/$1.2 per 1M Mistral Large 3 AlternativesMistral · $2/$5 per 1M Mistral Medium 3 AlternativesMistral · $0.4/$2 per 1M