The LLM Knowledge Hub

Anthropic's premium Claude model (May 2026), delivering flagship-class reasoning and agentic coding below Fable 5 pricing. Opus 4.8 keeps Opus 4.7's $5/$25 pricing while using ~35% fewer output tokens on agentic coding, with a 1M-token context window, 128K output, adaptive thinking, and mid-conversation system messages.

Anthropic's first generally available Mythos-class model (June 2026) and its most capable widely released Claude, built for the most demanding reasoning and long-horizon agentic work. Runs with always-on adaptive thinking, a 1M-token context window, and 128K output, and shares Claude Mythos 5's weights with added safety classifiers that route flagged high-risk requests to Opus 4.8.

The premium reasoning tier of GPT-5.5 (April 2026), for the hardest agentic, coding, and knowledge-work tasks. Shares GPT-5.5's 1M-token context window and multimodal (text + vision) input, with extended reasoning for maximum accuracy.

Alibaba's flagship proprietary Qwen model (May 2026) with a 1M-token context window, native extended-thinking mode, and benchmark wins on SWE-Pro and Terminal-Bench. API-only via DashScope (no open weights).

NVIDIA's open Nemotron-3 model, a hybrid Mamba-Transformer latent mixture-of-experts with 12B active parameters and a 1M-token context window. Part of NVIDIA's fully open Nemotron family (open weights, training data, and recipes), it targets efficient long-context reasoning.

OpenAI's flagship in the GPT-5.6 generation (released July 2026), for the hardest problems including complex coding and security research. Sol set a new state of the art on Terminal-Bench 2.1, with an 'ultra' subagent mode for the hardest command-line tasks. GPT-5.6 fixes three tiers - Sol, Terra, Luna - and floats the generation number, signaling more frequent capability upgrades.