Gate News message, April 26 — OpenAI's head of developer experience Romain Huet revealed in a recent statement on X that Codex, the company's independently maintained specialized coding model line, has been merged into the main model starting with GPT-5.4 and will no longer receive separate

Gate News message, April 25 — DeepSeek released preview versions of V4-Pro and V4-Flash on April 24, both open-weight models with one million token context windows. V4-Pro features 1.6 trillion total parameters but activates only 49 billion per inference pass using a Mixture-of-Experts architecture.

Gate News message, April 25 — Nvidia has rolled out OpenAI's Codex, an AI agent powered by GPT-5.5, to its entire workforce following a successful trial with approximately 10,000 employees, according to internal communications from CEO Jensen Huang and OpenAI CEO Sam Altman. Codex is designed to as

Gate News message, April 25 — OpenClaw, an open-source AI agent framework, released v2026.4.23 on April 23, introducing updates across image generation, sub-agent mechanisms, and security hardening. Image generation enhancements allow gpt-image-2 to be called directly via Codex OAuth without

Gate News message, April 24 — OpenAI has officially released GPT-5.5, a next-generation AI model designed to handle complex objectives, tool integration, self-verification, and multi-step task completion. The model excels at code writing and debugging, online research, data analysis, document

Perplexity uses SFT followed by RL with Qwen3.5 models, leveraging a multi-hop QA dataset and rubric checks to boost search accuracy and efficiency, achieving best-in-class FRAMES performance. Abstract: Perplexity's post-training workflow for web-search agents combines supervised fine-tuning (SFT) to enforce instruction-following and language consistency with online reinforcement learning (RL) via the GRPO algorithm. The RL stage uses a proprietary multi-hop verifiable QA dataset and rubric-based conversational data to prevent SFT drift, with reward gating and within-group efficiency penalties. Evaluation shows Qwen3.5-397B-SFT-RL achieving top FRAMES performance, 57.3% accuracy with a single tool call and 73.9% with four calls at $0.02 per query, outperforming GPT-5.4 and Claude Sonnet 4.6 on these metrics. Pricing is API-based and excludes caching.

Kimi K2.6 tops OpenRouter leaderboard, outperforming Claude, GPT, and open-source rivals, signaling domestic AI progress and narrowing the gap with global leaders. Abstract: Kimi.ai announced that its latest model, Kimi K2.6, ranked first on the OpenRouter programming-ability leaderboard, leading developer evaluations. Benchmarks indicate K2.6 delivers superior performance across programming tasks relative to Claude, GPT-series, and other open-source models, highlighting gains in code generation and development-task handling and signaling progress for domestic AI toward international leaders.

Anthropic drops Claude Code from Pro plan, drawing criticism as developers migrate to OpenAI; Codex remains free/basic, GPT-5.4 and Image 2.0 boost performance, driving large user migration. Abstract: The article examines Anthropic's removal of Claude Code from the $20 Pro plan, which triggers backlash from developers who call it a hidden price increase and a reliability risk. It contrasts this move with OpenAI's policy of keeping Codex in free and basic tiers, while highlighting strong model performance from GPT-5.4 and ChatGPT Images 2.0, and notes a rapid migration of users to OpenAI, with Codex reportedly exceeding 4 million weekly active users.

Gate News message, April 22 — GPT-5.5 has appeared in the model selector dropdown for OpenAI Codex, positioned at the top of the list. However, when users select GPT-5.5 and submit a request, Codex returns a 400 error with the message "The 'gpt-5.5' model is not supported when using Codex with a Ch

OpenAI rolls out ChatGPT Images 2.0 with improved rendering, multilingual script support, real-time web search, and multiple outputs per prompt, plus refined accuracy and pricing benchmarks against Imagen. Abstract: The article reports OpenAI's ChatGPT Images 2.0 rollout, noting improved rendering of text and UI elements, broader language support, and better adherence to instructions. It describes new capabilities for real-time search, multiple outputs, and output refinement, while offering pricing context and noting the architecture remains undisclosed.