Everything, in order

MIT-licensed GLM flagship focused on long-horizon coding, agentic engineering, and IndexShare sparse-attention reuse.

Native multimodal 428B/23B-active model with one-million-token context and MiniMax Sparse Attention.

Access suspended three days after launch under an export-control directive citing national security.

OpenAI previewed GPT-5.6, claiming the largest context window of any frontier model.

Available across the Claude API, AWS, and Microsoft Foundry.

Largest Nemotron 3 model appears on NVIDIA NIM with downloadable weights, 1M context, and agentic reasoning positioning.

Agentic upgrades and stronger long-running task performance.

Open-weight agentic model focused on software engineering, productivity tasks, and model self-evolution workflows.

Endpoint shut down as part of Anthropic's 2026 deprecation calendar.

1M-token context at $1.25/$2.50 per million tokens; also live on Microsoft Foundry.

DeepSeek introduced the V4 preview series under MIT, led by V4-Pro at 1.6T total / 49B active parameters.

80B/13B-active Hunyuan MoE model released with open weights and agentic tool-use support.

Frontier model shipped only to ~50 defensive-security partners via Project Glasswing.

Removed from all ChatGPT plans after a Feb 13 deprecation notice.

Gemma 4 introduces advanced reasoning open models in 12B, 26B, and 31B sizes.

Apache-2.0 MoE model focused on reasoning, coding, agentic tasks, and Indian-language performance.

The consumer launch that ignited the modern LLM race.

Withdrawn following criticism of confident but inaccurate scientific output.

After a staged rollout that began in Feb 2019 over misuse concerns.