BREAKINGMystery 'Stealth Ox Alpha' Model Lands on OpenRouter: 1M Context, 131K Output & DeepSWE Coding Prowess

Mystery 'Stealth Ox Alpha' Model Lands on OpenRouter: 1M Context, 131K Output & DeepSWE Coding Prowess

Independent researchers fingerprint the anonymous powerhouse as Zhipu AI's upcoming GLM-5.3 release as it scores ~81.4% on DeepSWE benchmarks.

An anonymous frontier AI model labeled 'stealth/ox-alpha' appeared unexpectedly on OpenRouter on August 20, 2026. Boasting a 1,048,576-token context window, 131,072-token generation limits, and multimodal video support, tokenizer fingerprinting strongly suggests it originates from top Chinese lab Zhipu AI.

Cipher_0x·34 MIN AGO

5 min read

AI & LLMs

Google DeepMind Confirms Gemini 4 Pre-Training on Next-Gen TPU Clusters

Google has officially acknowledged that Gemini 4 is currently in full-scale pre-training across its next-generation Trillium and Ironwood TPU superclusters. The flagship model focuses heavily on native autonomous coding and deep scientific reasoning.

Cipher_0x1 HOUR AGO

AI & LLMs

Zhipu AI Deploys GLM-5.3 with 1M Context Ahead of Planned Open-Weights Release

Beijing-based Zhipu AI has deployed its GLM-5.3 reasoning update. Featuring a 1-million-token context window and specialized agentic capabilities, open weights for global researchers are scheduled for release in late August.

ZeroDay_Phantasm2 HOURS AGO

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Artificial Intelligence Matrix

Frontier AI Models Benchmark Leaderboard

Independent evaluation of quality index, coding benchmarks, throughput, and token pricing.

# Model	Quality Index	Coding	Speed (t/s)	Price / 1M
1 Claude Fable 5 Anthropic	98.4	84.8%	62tok/s	$90.00 in: $18.00
2 Claude Opus 5 (max) Anthropic	97.8	83.5%	68tok/s	$75.00 in: $15.00
3 GPT-5.6 Sol (max) OpenAI	97.5	84.2%	72tok/s	$48.00 in: $12.00
4 Grok 4.6 (high) xAI	96.9	81.8%	85tok/s	$20.00 in: $5.00
5 Kimi K3 (max) Moonshot AI	96.5	80.5%	76tok/s	$16.00 in: $4.00
6 GLM-5.3 Zhipu AIOpen Weights	96.2	79.8%	82tok/s	$2.00 in: $0.50
7 GPT-5.6 Terra (max) OpenAI	96	82.8%	90tok/s	$24.00 in: $6.00
8 Stealth Ox Alpha Anonymous	95.8	81.4%	78tok/s	$0.00 in: $0.00
9 DeepSeek V4-Pro DeepSeekOpen Weights	95.5	78.5%	92tok/s	$1.10 in: $0.28
10 Gemini 3.7 Flash Google DeepMind	94.2	75.1%	175tok/s	$0.40 in: $0.10

View complete benchmarks matrix & model comparisons →

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showing 10 stories

AI & LLMs

Mystery 'Stealth Ox Alpha' Model Lands on OpenRouter: 1M Context, 131K Output & DeepSWE Coding Prowess

Cipher_0x

34 MIN AGO

AI & LLMs

Google DeepMind Confirms Gemini 4 Pre-Training on Next-Gen TPU Clusters

Cipher_0x

1 HOUR AGO

AI & LLMs

Zhipu AI Deploys GLM-5.3 with 1M Context Ahead of Planned Open-Weights Release

ZeroDay_Phantasm

2 HOURS AGO

AI & LLMs

DeepSeek V4-Pro Enters General Availability: 1.6-Trillion Parameter MoE with DualPipe v2

DeepSeek has transitioned DeepSeek V4-Pro into general availability. With 1.6 trillion total parameters (activating 128B per token) and innovative DualPipe v2 network overlapping, it rivals the best proprietary systems at a fraction of inference costs.

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3 HOURS AGO

AI & LLMs

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5 HOURS AGO

Hardware & Chips

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8 HOURS AGO

Robotics & Agents

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Policy & Regulation

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Business & Startups

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AI & LLMs

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