Question 1

What is the latest AI model from Anthropic?

Accepted Answer

Anthropic's primary flagship model is Claude Opus 5.5 (Undisclosed (Anthropic), 1,000,000 tokens context). Released Sept 22, 2026; Anthropic's flagship with Fable-level agentic coding at 40% lower cost than Opus 5 ($4/$20), beating GPT-6 Astra on FrontierCode at a fifth of the cost per task. Their latest research checkpoint is Claude Sonnet 5.5 (Fast Balanced).

Question 2

What is the latest AI model from OpenAI?

Accepted Answer

OpenAI's primary flagship model is GPT-6.1 Sol (Undisclosed (OpenAI), 1,050,000 tokens context). Released Sept 29, 2026; upgrade to GPT-6 Sol with near-Astra coding and computer use at one-fifth of Astra's price ($2/$10). Their latest research checkpoint is GPT-6 Luna (High-Volume Efficient).

Question 3

What is the latest AI model from Google DeepMind?

Accepted Answer

Google DeepMind's primary flagship model is Gemini 3.8 Flash (TPU v6e Speculative MoE, 1,048,576 tokens context). Released Sept 2, 2026; Google DeepMind's premier frontier workhorse powering advanced agentic coding loops, recursive self-correction, and 1M token real-time multimodal streaming. Their latest research checkpoint is Gemini 3.8 Live Extended Thinking (Live Speech-to-Speech).

Question 4

What is the latest AI model from xAI?

Accepted Answer

xAI's primary flagship model is Grok 4.7 (Undisclosed (xAI, larger base than 4.6), 500,000 tokens context). Released Sept 21, 2026; xAI's flagship for coding and knowledge work on a larger base with longer RL, matching Grok 4.6 price/speed ($2/$6) with 46.3% CursorBench 4.0 and 71.0% DeepSWE v1.1. Their latest research checkpoint is Grok Voice Transcribe 2.0 (Speech-to-Text).

Question 5

What is the latest AI model from DeepSeek?

Accepted Answer

DeepSeek's primary flagship model is DeepSeek V4.1 Flash (552B MoE (8B / 16B Activated), 1,000,000 tokens context). Released Sept 10, 2026; first of DeepSeek's Causal Encoder-Decoder family with native image+text, 1M context and 384K output. Replaces V4-Flash and V4-Pro from Sept 14. Their latest research checkpoint is DeepSeek V4-Pro (0813) (Frontier MoE).

Question 6

What is the latest AI model from Meta AI?

Accepted Answer

Meta AI's primary flagship model is Muse Spark 1.3 (14B Dense Real-time Multimodal, 262,144 tokens context). Released Sept 3, 2026; Meta's ultra-cheap ($0.05/M in, $0.15/M out) real-time multimodal model with native simultaneous voice, vision, and ultra-low latency response under 80ms. Their latest research checkpoint is Muse Voice Transcribe (Streaming Speech).