GPT-6 Astra
OpenAI · Text
OpenAI's most capable model, built for the hardest end-to-end work — computer use, browsing, software engineering, and scientific analysis. The GPT-6 generation's flagship, sitting above the GPT-5.6 tiers.
Proprietary 1.1M ctx
Try on: OpenAI API
Released Sep 2026 · Verified 2026-09-08
Gemini 3.8 Flash
Google · Text
Google's most intelligent Flash model — engineered for long-horizon software engineering, autonomous agents, and complex enterprise workflows at Flash-tier speed and cost. The current head of the Gemini Flash line.
Proprietary 1.0M ctx
Try on: Google AI Studio · Vertex AI
Released Sep 2026 · Verified 2026-09-08
Claude Fable 5.1
Anthropic · Text
Anthropic's most capable widely released model — the top tier above Opus 5, built for long-running agentic coding, knowledge work, and research. Succeeds Claude Fable 5.
Proprietary 1M ctx
Try on: Anthropic API · AWS Bedrock · Google Vertex AI
Released Sep 2026 · Verified 2026-09-08
GLM-5.3-Flash
Z.ai · Text
Z.ai's efficient GLM-5.3 tier under plain MIT — a 320B sparse model with 18B active, natively multimodal on input, at roughly a tenth of frontier pricing. The most permissively licensed model at this capability level.
MIT Open Runs locally 1M ctx
Try on: Hugging Face · Z.ai API
Released Aug 2026 · Verified 2026-09-08
DeepSeek V4 Pro
DeepSeek · Text
DeepSeek's flagship general-purpose MoE model. Broadly competitive with the strongest proprietary models, released under MIT at open-weights cost.
MIT Open Runs locally 1.0M ctx
Try on: Hugging Face · DeepSeek Platform
Released Aug 2026 · Verified 2026-09-08