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Complex Reasoning

9 recommended models

Solving complex problems, mathematical reasoning, and logical analysis

Best Models for Complex Reasoning

Claude Opus 4

by Anthropic

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.

200K contextFrom $15/MTokAPI Available

o1

by OpenAI

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

200K contextFrom $15/MTokAPI Available

o3-mini

by OpenAI

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

200K contextFrom $1.10/MTokAPI Available

Mistral Large

by Mistral AI

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

128K contextFrom $2/MTokAPI Available

Gemini 2.0 Flash Thinking

by Google

Experimental reasoning model that shows its thought process. Optimized for complex multi-step problems and explanations.

1000K contextAPI Available

Llama 3.1 405B

by Meta

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

128K contextAPI Available

DeepSeek-V3

by DeepSeek

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

128K contextFrom $0.27/MTokAPI Available

DeepSeek-R1

by DeepSeek

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

64K contextFrom $0.55/MTokAPI Available

Qwen 2.5 72B

by Alibaba Cloud

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

128K contextAPI Available