Release dates and context windows of representative models from major providers.
  • Provider:
  • Model:
Provider Model Released Context window Description
OpenAI o1-preview 2024-09-12 128K Preview of the o-series reasoning models. It runs an internal chain of thought before answering and was clearly stronger than then-current GPT-4o on math, coding, and science.
OpenAI o1-mini 2024-09-12 128K A lighter reasoning version of o1, focused on STEM and coding. Lower cost and faster, for cases that need some reasoning but not the strongest results.
DeepSeek DeepSeek-V2.5 2024-09-05 128K Merged V2-0628 and Coder-V2-0724 so general chat and coding share one model.
xAI Grok-2 2024-08-13 128K A full-generation Grok upgrade with stronger coding and writing, plus realtime X search and image generation.
OpenAI GPT-4o mini 2024-07-18 128K A cost-efficient small multimodal version of GPT-4o. It replaced GPT-3.5 Turbo in ChatGPT and fits high-volume lightweight tasks.
Anthropic Claude 3.5 Sonnet 2024-06-20 200K A breakout Sonnet generation. Coding, vision, and tool use far surpassed Claude 3 Opus, with excellent value.
DeepSeek DeepSeek-Coder-V2 2024-06-17 128K A code-specialized model based on V2. Covers more programming languages and is strong at long-context repo Q&A.
Qwen Qwen2 2024-06-06 131072 The third Qwen generation, stronger in multilingual and long-context work. 7B and above generally support 128K.
Zhipu GLM GLM-4-9B 2024-06-05 128K A compact open-source GLM-4, plus an experimental 1M version, for local and private deployment.
Gemini Gemini 1.5 Flash 2024-05-14 1M A high-speed model distilled from 1.5 Pro. Low price and low latency, for high concurrency and realtime apps.
OpenAI GPT-4o 2024-05-13 128K The first native omni multimodal model, handling text, image, and audio in one system with lower latency. It was ChatGPT's default model for a time.
DeepSeek DeepSeek-V2 2024-05-06 128K An MLA-architecture MoE. Performance approached then-current mid-tier closed models at a very low price, and it directly drove a domestic API price war.
xAI Grok-1.5 2024-03-28 128K Clearly stronger than Grok-1 on reasoning and instruction following. Context grew to 128K, and vision (Grok-1.5V) followed soon after.
Kimi moonshot-v1-128k 2024-03-20 128K An early flagship on the Kimi open platform. 128K context, suited to Chinese long-document Q&A and summarization.
Anthropic Claude 3 Haiku 2024-03-13 200K The fastest and cheapest Claude 3 tier, nearly instant. Fits classification, extraction, customer support, and other high-concurrency work.
Anthropic Claude 3 Opus 2024-03-04 200K The Claude 3 flagship. At the time it matched GPT-4-class reasoning, math, and vision, with 200K context for complex analysis.
Anthropic Claude 3 Sonnet 2024-03-04 200K The Claude 3 balanced tier, trading off intelligence and speed. It was the most commonly deployed Sonnet for enterprise use.
Gemini Gemini 1.5 Pro 2024-02-15 1M The first to bring production context to 1 million (later experimented to 2 million). Long video, codebases, and extra-long documents are strengths.
Gemini Gemini 1.0 Ultra 2024-02-08 32768 The strongest 1.0 tier, launched with Gemini Advanced. It targeted then-current GPT-4-class reasoning and multimodality.
Qwen Qwen1.5 2024-02-04 32768 A full generation aligned to ChatML. Sizes from 0.5B to 110B MoE, and the ecosystem started to take shape.

Description

Release dates and context windows are compiled from public sources. Limits can differ by platform, plan, or preview API. Please refer to each provider's official documentation.
The table above is sorted by release date in descending order.