Best AI for coding: choose by your development workflow

Claude Haiku 4.5 is Anthropic's latest small AI model, launched on October 15, 2025. It offers similar coding performance to the previous state-of-the-art model, Claude Sonnet 4, but at one-third the cost and more than twice the speed. This model excels in real-time, low-latency tasks, making it particularly beneficial for applications like chat assistants and customer service agents. Claude Haiku 4.5 also enhances the coding experience, providing a responsive environment for multiple-agent projects and rapid prototyping, while maintaining high intelligence and speed.

Claude Opus 4.5 is Anthropic's latest AI model, launched on November 24, 2025. It is designed to be intelligent and efficient, excelling in coding, agents, and computer use. The model significantly improves performance in everyday tasks such as deep research and working with slides and spreadsheets. It is state-of-the-art in real-world software engineering tests and is available on various platforms, including apps, API, and major cloud services.

GPT-5.2 is OpenAI's flagship model series for 2025, achieving unprecedented performance in reasoning, coding, and mathematics. Available in three variants—Instant (optimized for speed), Thinking (step-by-step reasoning), and Pro (maximum capability)—it sets new industry benchmarks including a perfect 100% on AIME 2025 and 55.6% on SWE-Bench Pro. The model excels at professional knowledge work including complex spreadsheets, presentations, and business documents. It demonstrates 30% fewer hallucinations than GPT-5.1 and introduces improved agentic capabilities for executing multi-step tasks with high reliability. Key improvements include enhanced tool calling, superior front-end code generation, and better long-context reasoning.

Anthropic's most capable model, excelling at complex analysis, nuanced content creation, and advanced coding tasks. Features superior reasoning and the ability to work autonomously on extended tasks.

The best combination of performance and speed for efficient, high-throughput tasks. Excellent balance of intelligence and cost-effectiveness.

Reasoning-focused model achieving strong performance on math and coding benchmarks through reinforcement learning.

Fast, cost-efficient reasoning model excelling at STEM tasks. Offers adjustable reasoning effort levels.

Highly efficient 671B MoE model trained on 14.8T tokens. Achieves top benchmark scores at fraction of typical training cost.

Google's latest multimodal model with native tool use, code execution, and agentic capabilities. Fast and efficient.

Meta's latest open-source model offering performance comparable to Llama 3.1 405B at a fraction of the cost. Excellent for self-hosting.

OpenAI's reasoning model designed to solve hard problems across science, coding, and math using chain-of-thought reasoning.

Specialized coding model available in sizes from 0.5B to 32B. State-of-the-art for open-source code models.

Alibaba's flagship open-source model with strong coding and math capabilities. Supports 29 languages.

xAI's flagship model with strong reasoning and coding capabilities. Known for witty responses and real-time knowledge.

Meta's largest open-source model with 405 billion parameters. Competitive with leading closed models on benchmarks.

Efficient 12B model developed with NVIDIA. Drop-in replacement for Mistral 7B with improved performance.

Specialized coding model trained on 80+ programming languages. Optimized for code completion and generation.

OpenAI's flagship multimodal model with advanced reasoning, vision, and audio capabilities. Fast and versatile for most tasks.

Mistral's flagship model with top-tier reasoning, coding, and multilingual capabilities. Strong at complex tasks.

OpenAI's original GPT-4 model. A highly capable large language model for complex tasks requiring advanced reasoning and broad knowledge.

An optimized version of GPT-4 with vision capabilities and improved performance. Supports both text and image inputs with a 128K context window.

OpenAI's latest flagship model with improved coding, instruction following, and long-context understanding. Excels at complex multi-step tasks with a 1M token context window.

A smaller, faster, and more affordable version of GPT-4.1. Ideal for tasks requiring quick responses while maintaining strong performance.

OpenAI's most advanced language model to date. Features unprecedented reasoning, creativity, and multimodal understanding. Represents a major leap in AI capabilities across all domains.

The latest iteration of GPT-5 with improved instruction following, reduced hallucinations, and enhanced safety. Offers the best balance of capability and reliability for production use.

A smaller, faster reasoning model optimized for coding and STEM tasks. Offers strong logical capabilities at a lower cost than o1.

OpenAI's most powerful reasoning model. Uses extended thinking time to solve complex problems in math, science, and coding. Achieves expert-level performance on technical benchmarks.

A cost-effective reasoning model that balances strong logical capabilities with faster response times. Great for everyday reasoning tasks.