@arena

AIAI-generated summary Agent Arena analyzed Gemini 4 Carbon by GoogleDeepMind and found it becomes more cost-competitive as tasks get more demanding. The analysis shows that savings for Gemini 4 Carbon relative to GPT-6 Astra and Claude Opus 5.5 grow on the most expensive sessions.

AIAI-generated summary The artificial intelligence model MiniMax H3-Image has been added to the Arena platform for evaluation. Users can access the new model in Battle Mode to test prompts and participate in voting while scores are pending.

AIAI-generated summary Anthropic says it has upgraded Claude Fable and Claude Mythos to version 5.2, bringing improvements in coding, reasoning, and vision. Anthropic says the updated models generate outputs up to 30 percent faster than previous versions and are available at a lower price.

AIAI-generated summary Anthropic has launched Claude Fable 5.2 alongside Mythos 5.2 with a price cut from $10 and $50 to $8 and $40 per million input and output tokens. Anthropic reports that Fable 5.2 scored 49.1 percent on FrontierCode 2.0 and generated output up to 30 percent faster than the previous version.

AIAI-generated summary Muse Ember (Max) from AIatMeta entered the Code Arena: WebDev as a small model built for fast, high-quality, and low-cost work. The system generated over 20 websites and animations in one go, averaging about 2 minutes and about $0.04 per task across timed generations.

AIAI-generated summary Meta has introduced Muse Ember as a smaller and more efficient multimodal addition to its Muse model family. Meta says the new model is priced competitively with other systems and can operate desktop apps from screenshots.

AIAI-generated summary Inkling 2 Small by thinkymachines has entered Code Arena: WebDev with a score of 1654 points evaluated by AutoEval. The model is priced at one dollar per one million output tokens and thirty cents per one million input tokens.

AIAI-generated summary Agent Arena reports that nearly 30,000 tasks ran for over an hour over the last 14 days, with the average model making 332 tool calls. The platform states that an hour-long task costs a median of $10.51 with Gemini 4 Carbon, $21.13 with Claude Opus 5.5, and $31.08 with GPT-6 Astra.

AIAI-generated summary GoogleDeepMind and XiaomiMiMo emerge as the biggest winners in the Agent Arena as tasks get more complex. OpenAI and AnthropicAI hold 10 of the 11 frontier spots on cheaper tasks, but drop to 7 on the most expensive 5 percent of sessions.

AIAI-generated summary Agent Arena measures complex, real-world tasks that span hundreds of turns and amplify differences in frontier models. Comparing top models from five leading labs reveals a fifty-five minute gap in duration, with Claude Opus 5.5 taking the longest and Kimi K3.1 Pro spending the least time.

AIAI-generated summary Google Cloud makes Gemini Omni 1.2 Flash available on Google Cloud for business users and developers. Google Cloud says the model is fast, cost-effective, and follows image, video, and audio references more closely than before.

AIAI-generated summary @OpenAI has launched GPT Image 2.6 Sunburst and Flare with enhanced speed running almost two times faster than GPT Image 2.5. @OpenAI reports that Sunburst Medium and Flare Medium deliver enhanced photorealism and greater editing consistency while maintaining the lead over competing labs.

AIAI-generated summary Moonshot AI has released Kimi K3.1 Pro as an open-weight, natively multimodal agentic model featuring a 1-million-token context window. Moonshot AI says the model delivers substantial improvements in coding, 3D creation, financial research, factual accuracy, and other agentic capabilities.

AIAI-generated summary Tencent Holdings announced its latest artificial intelligence large language model, Hy4, on Wednesday. Tencent Holdings claims the large language model will break into the top tier of open source AI models for the first time.

AIAI-generated summary Agent Arena launched Hy4 by TencentHunyuan, which has landed at number fourteen overall. TencentHunyuan says the model delivers a four point seven percent net improvement and costs fifty-five cents per task across real-world sessions.

AIAI-generated summary Google previews Gemini 4 Carbon as its strongest frontier model with capabilities for cybersecurity and long-horizon engineering. Google says the model starts testing with a subset of cyber defenders and trusted partners through the Fairwind Program.

AIAI-generated summary @arena is available with an analysis showing that the top 10 agents in Agent Arena process about 93 input tokens for every token they generate. @arena states that this processing ratio explains why labs are racing to lower the cost of cached input.

AIAI-generated summary GoogleDeepMind released an early preview of Gemini 4 Carbon, which was put through tests covering 3D generations and UI tasks. The testing evaluated Gemini 4 Carbon against other models including Gemini 4 Argon, Claude Opus 5.5, GPT-6.1 Sol, Muse Wonderful, Kimi and DeepSeek.