Overview of large language models — versions, capabilities and comparison
A complete overview of the most important large language models (LLMs) from 2024–2026: GPT, Claude, Gemini, Llama, Mistral and more. Per model a table with versions, context window, strengths and pricing.
Introduction
The AI landscape is changing at a rapid pace. New versions of language models appear monthly, each with different strengths, context windows and pricing. This article provides an updated overview of the most important large language models currently available.
OpenAI — GPT series
| Model | Context window | Strong at | Availability |
|---|
| GPT-4o | 128K tokens | Versatile, multimodal, fast | ChatGPT Free/Plus, API |
| GPT-5 | 256K tokens | Reasoning + creativity, agentic tasks | ChatGPT Plus/Pro, API |
| o3 | 200K tokens | Complex reasoning, mathematics, science | ChatGPT Plus/Pro, API |
Anthropic — Claude series
| Model | Context window | Strong at | Availability |
|---|
| Claude Opus 4.8 | 200K tokens | Complex analysis, long documents | Claude Pro, API |
| Claude Sonnet 4.6 | 200K tokens | Daily use, code, writing | Claude Free/Pro, API |
| Claude Haiku 4.5 | 200K tokens | Fast, cheap, high volume | API |
Google — Gemini series
| Model | Context window | Strong at | Availability |
|---|
| Gemini 2.5 Pro | 2 million tokens | Multimodal, reasoning, #1 on benchmarks | Gemini Advanced, API |
| Gemini 2.5 Flash | 1 million tokens | Fast, cost-efficient | API |
Meta — Llama series (open source)
| Model | Parameters | Strong at | Licence |
|---|
| Llama 4 Maverick | 17B active | Multimodal, comparable to GPT-4o | Llama Community License |
| Llama 4 Scout | 17B active | Fast, 10M context | Llama Community License |
Comparison: which model for which task?
| Task | Best choice | Alternative |
|---|
| Complex analysis / long documents | Claude Opus 4.8 | Gemini 2.5 Pro |
| Daily writing and email | Claude Sonnet 4.6 | GPT-4o |
| Mathematics and scientific reasoning | o3 / GPT-5 | DeepSeek R1 |
| Privacy / on-premise | Llama 4 / Mistral | DeepSeek V3 |
| Free for consumers | ChatGPT (GPT-4o mini) | Claude Free, Gemini Free |