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LLM Index

Gemini vs. Claude

A side-by-side comparison of release history, capabilities, licensing and model sizes.

Attribute Gemini Claude
Developer Google Anthropic
Current generation Gemini 3.5 Claude Opus 5
Initial release 2023-03-21 2023-03-14
Instruct tuned Yes Yes
Coding Yes Yes
Finetuning Yes Yes
Open source No No
License NA NA
Model sizes Undisclosed Undisclosed
Links
Website Pricing
Website Pricing

Gemini

Gemini is Google's multimodal model family for consumer, developer, and enterprise applications. The current generation includes Gemini 3.5 for fast agentic workflows and Gemini 3.1 Pro for complex reasoning.

Google introduced Bard in March 2023 and renamed the product Gemini in February 2024. The Gemini family combines text, image, audio, video, code, and tool-use capabilities across the Gemini app, Gemini API, Vertex AI, and Google's productivity products. Gemini 3.1 Pro arrived in February 2026, followed by the faster Gemini 3.5 generation at Google I/O 2026.

Further reading

Claude

Claude is Anthropic's family of safety-focused language models for coding, agents, reasoning, and knowledge work. Claude Opus 5 is the current Opus generation.

Claude is Anthropic's flagship model family and was originally trained using the company's Constitutional AI feedback method. Anthropic introduced the Claude 3 Haiku, Sonnet, and Opus tiers in 2024, added extended thinking with Claude 3.7 in 2025, and launched the Claude 4 generation for coding and agent workflows in May 2025. Claude Opus 5, released in July 2026, adds a one-million-token context window, thinking by default, deeper test-time reasoning, and stronger long-horizon coding, multi-agent, vision, and enterprise-work capabilities.

Further reading

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