Models
The AI models available in AltStudio, grouped by provider, with the capabilities each one supports.
AltStudio works across multiple model providers. The list below is generated from the platform's model registry — names, providers, and supported capabilities stay in sync as models are added or retired.
Vision means the model can read images, Web search means it can search the web during a response, and Tools means it can call tools. The recommended model is a good default when you're not sure which to pick.
Fast and efficient multimodal model with tool calling
gemini-2.5-flashMost capable Gemini model for complex reasoning
gemini-2.5-proRefined Gemini 3 model with better thinking, improved token efficiency, and reliable agentic workflows
gemini-3.1-pro-previewFrontier-level intelligence optimized for fast, low-cost agentic loops, multi-step workflows, and long-horizon tasks
gemini-3.5-flashAnthropic
Latest and most capable Sonnet model with superior reasoning and extended thinking
claude-sonnet-4-6Anthropic's most capable model — the most demanding reasoning and long-horizon agentic work. Adaptive thinking always on; depth via effort.
claude-fable-5Most capable Opus model — state-of-the-art long-horizon agentic work, knowledge work, and memory
claude-opus-4-8Most capable model with step-change improvement in agentic coding and complex reasoning
claude-opus-4-7Previous Opus model, strong for agents and complex coding tasks
claude-opus-4-6Previous generation Sonnet model
claude-3-5-sonnet-20241022Fast model for quick responses
claude-3-5-haiku-20241022OpenAI
Previous-gen frontier model with strong reasoning and 400K context
gpt-5.2-2025-12-11Previous frontier model with 1M+ context, advanced reasoning, and function calling
gpt-5.4-2026-03-05Latest frontier OpenAI model for coding and professional work; 1.05M context, configurable reasoning effort (none/low/medium/high/xhigh)
gpt-5.5-2026-04-23Perplexity
Fast web-connected AI with real-time search and citations
sonarPremier search-grounded model with 2× citations and deep reasoning
sonar-proAdvanced reasoning model with configurable effort levels
sonar-reasoning-proMulti-step autonomous research with comprehensive reports and citations
sonar-deep-researchTavily
Autonomous multi-step research with numbered citations and comprehensive reports
tavily-research-pro