Release dates and context windows of representative models from major providers.
  • Provider:
  • Model:
Provider Model Released Context window Description
Qwen Qwen3.7-Max 2026-05-20 1M The next Max-series flagship. Thinking is on by default, with 1 million context. Later snapshots added visual understanding.
Gemini Gemini 3.5 Flash 2026-05-01 1048576 The 3.5 high-speed tier, for low-latency multimodal apps. Context is about 1049K.
DeepSeek DeepSeek-V4 Preview 2026-04-24 1M A V4 preview with 1 million context by default. Split into Pro and Flash MoE tiers, with open weights.
OpenAI GPT-5.5 2026-04-23 1M The next default flagship for ChatGPT and Codex. Instant became the full default on May 5, with fewer hallucinations and better personalization.
Kimi Kimi K2.6 2026-04-21 256K A general multimodal K2 iteration with stronger long-horizon coding and agent workflows. It was the recommended model before K3.
Anthropic Claude Opus 4.7 2026-04-16 1M A broadly released flagship for complex reasoning and long-horizon coding. Higher visual resolution, with Claude Design launched at the same time.
Qwen Qwen3.6 2026-04-16 262144 Built on 3.5 with stronger stability and real-world coding. Open-sourced sizes such as 35B-A3B and 27B.
Zhipu GLM GLM-5.1 2026-04-07 200K Aimed at extra-long tasks, strategy correction, and bug fixing. Officially, agents can run for hours.
OpenAI GPT-5.4 mini 2026-03-17 1M Brings GPT-5.4-class capability down to a mid-small model. Fits high-concurrency agents and tool calling.
OpenAI GPT-5.4 nano 2026-03-17 1M The smallest GPT-5.4 size. Keeps million-token context and fits classification, routing, and light tool calling.
OpenAI GPT-5.4 2026-03-05 1M The first mainline native computer-use model. API/Codex offer million-token context and tool search, with better token efficiency than GPT-5.2.
xAI Grok-4.20 2026-02-17 256K A multi-agent preview generation. Default 256K, expandable to 2M. Later Beta 2 strengthened instruction following and reduced hallucinations.
Anthropic Claude Sonnet 4.6 2026-02-17 1M A full upgrade in coding, computer use, long-context reasoning, and agent planning. 1M context first shipped as beta.
Qwen Qwen3.5 2026-02-16 262144 A new generation that combines multimodal capability, architecture efficiency, and large-scale RL. It first shipped MoE sizes such as 397B-A17B.
Zhipu GLM GLM-5 2026-02-12 200K About 744B total parameters and 40B active. Sparse attention improves long-context efficiency.
Anthropic Claude Opus 4.6 2026-02-05 1M An Opus with stronger coding. 1M context became a standard capability, and it became the default in office add-ins such as Excel and PowerPoint.
Gemini Gemini 3.1 Pro 2026-02-01 1048576 A mid-3.x Pro with stronger custom tools and coding. Context is about 1049K.
Kimi Kimi K2.5 2026-01-27 256K Native vision and Agent Swarm, bringing multimodal and multi-agent collaboration into a general model.
Zhipu GLM GLM-4.7 2025-12-22 200K The closing 4.x generation, with another step up in end-to-end agents and coding reasoning.
OpenAI GPT-5.2 2025-12-11 400K A GPT-5 flagship for professional knowledge work. Stronger long-horizon tool flows, and Thinking supports compact mode to go beyond a single context limit.

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.