Quick overview
The most advanced and broadly capable model right now is GPT-5.1, which improves on GPT-5 with stronger reasoning, more natural conversation, and better coding support. For specialized coding, GPT-5.1 Codex-Max is the leader. If you want speed and affordability, GPT-5 Mini or Grok Code Fast 1 are excellent. Claude Sonnet 4.5 and Gemini 3 Pro (Preview) are strong competitors, but GPT-5.1 currently sets the benchmark for general intelligence.
🔎 Model Overviews
Anthropic Claude
- Claude Haiku 4.5: Lightweight, fast, cost-efficient model. Good for quick tasks and summarization.
- Claude Sonnet 4: Balanced model, stronger reasoning than Haiku, widely used for general tasks.
- Claude Sonnet 4.5: Improved reasoning and reliability, better at long-form and multi-step tasks.
Google Gemini
- Gemini 2.5 Pro: Strong multimodal reasoning (text + images), competitive with GPT-4.1.
- Gemini 3 Pro (Preview): Early release, promises improved reasoning and multimodal performance, but still in preview.
OpenAI GPT
- GPT-4.1: Successor to GPT-4 Turbo, strong reasoning and coding, but less advanced than GPT-5.
- GPT-4o ("Omni"): Multimodal (text, audio, vision), real-time responses, cheaper and faster than GPT-4.
- GPT-5: Major leap—expert-level reasoning, reduced hallucinations, best at writing, coding, and health.
- GPT-5 Mini: Cost-efficient, fast, ideal for well-defined tasks with clear prompts.
- GPT-5 Codex (Preview): Specialized for coding, agentic programming, autonomous workflows.
- GPT-5.1: Upgrade to GPT-5—warmer, more conversational, adaptive reasoning, fewer hallucinations.
- GPT-5.1 Codex: Advanced coding model, handles long sessions, multi-file refactors, Windows support.
- GPT-5.1 Codex Mini: Smaller, cheaper coding model, good for resource-constrained environments.