Code Arena

OpenAI

2026-09-06 13:56:43

OpenAI's GPT-6 Astra Tops Code Arena WebDev Leaderboard, Outscoring Claude Fable 5.1 by 35 Points

OpenAI's latest model GPT-6 Astra has clinched the top spot on Code Arena's WebDev leaderboard with a score of 1,797, edging out Anthropic's Claude Fable 5.1 by 35 points. Released on September 3, 2026, the model is now accessible to ChatGPT subscribers and select API and cloud partners. Code Arena uses a crowdsourced Elo rating system, having recorded over 650,000 votes, focusing on multi-step reasoning, tool use, and iterative coding. Both models are priced identically.

900

Ox Alpha

2026-08-23 02:15:10

Anonymous model Ox Alpha draws attention after coding tests place it near top-tier systems

An anonymous model called Ox Alpha has quickly become a focal point in the AI community after appearing on OpenRouter with a 1 million-token context window, multimodal input support for text, images, and video, tool use, and free access for now. What pushed it into the spotlight was not its listing, but its coding performance. Developer Ben Davis tested the model on 10 DeepSWE tasks and reported that it solved eight, for an 80% pass rate. In the comparison he shared, Fable 5 Max scored 65%, GLM-5.3 Max and Grok 4.6 xhigh each scored 62%, and GPT-5.6 Sol Max came in at 52%. A later run by other developers on a different DeepSWE subset produced a result of about 63%, which left Ox Alpha’s exact standing unresolved because the task sets and runtime configurations were not identical. At the same time, speculation about the model’s identity has centered on Zhipu. Analysts pointed to matching video-token behavior with GLM-5V-Turbo, a consistent 75-token gap versus GLM-5.3 across 25 prompts, and other product traits that resemble GLM routing and agent behavior. Ben Davis said he was 99% sure the model was GLM-5.x, but neither OpenRouter nor Zhipu had publicly responded as of publication. Separate debate has also formed around another anonymous model, korrine, now being tested on Code Arena.

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Code Arena

2026-08-02 01:24:18

Code Arena launches image-to-web benchmark, with Claude Opus 5 topping the ranking

Code Arena rolled out its Image-to-WebDev benchmark on April 15, introducing a scoring system for AI models that turn UI design images into working webpage code. Claude Opus 5 (Max) ranked first with a score of 1703. The benchmark includes models from multiple providers, including Anthropic, OpenAI, and xAI. Its main focus is on React code generation and multi-step reasoning, two capabilities tied closely to practical front-end development tasks. According to analysis cited from CryptoBriefing, performance in these tools has direct implications for product development efficiency at cryptocurrency projects. The ranking may still shift over time as newer models are added to the benchmark.

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