#Model release

AIFrench AI company Mistral has released Mistral Large 4, its new flagship model with 1 trillion total parameters. The company plans to make all of the model's weights open at the end of the month.

AIAnthropic released Claude Haiku 5.5, which it calls the fastest, cheapest, and most capable Haiku model so far. On average it costs about 75% less to run than Haiku 4.5, with input at $0.10 and output at $0.50 per million tokens for requests up to 100,000 tokens. Anthropic also cut Sonnet 5.5's cache read price from $0.20 to $0.10 per million tokens, which it says lowers run costs by about 20% on many agent tasks.

AIOpenAI announced on X that GPT-6 and Intelligent UI are now rolling out to all ChatGPT users, after GPT-6 Astra, Sol and Luna were previously limited to ChatGPT Work and Codex. Intelligent UI lets GPT-6 combine text, images and interactive elements such as charts, clickable buttons and forms, with a mahjong learning example shown.

AIOpenAI says ChatGPT now offers Intelligent UI, which returns answers with fully interactive user interfaces. GPT-6 is rolling out in ChatGPT, powered by GPT-6 Sol for Plus, Pro, Business, and Enterprise tiers and GPT-6 Luna for Free and Go tiers. The rollout begins globally today in the Chat tab for paid tiers, with Free and Go tiers following tomorrow.

AIfal invites users to try the MiniMax H3-Max relight model through a link to its model page. The post provides no details on features, pricing, or performance.

AICognition's X post links to a blog post at devin.ai about Claude Haiku 5.5, but the text provides no further details. The post itself offers no benchmark scores, prices, or capabilities to report.

AIPerplexity's open-weights multimodal decision model, pplx-decider-v1.1-27b, is now available on OpenRouter. It accepts text, JSON, or images and returns typed answers with probabilities, priced at $0.02 per million input tokens with free output.

AISimon Willison published notes on the pricing of Claude Haiku 5.5, alongside his pelican illustration tests. The post links to his full write-up for details.

AIPerplexity's open-weights multimodal decision model, Decider v1.1, is now available on OpenRouter. It accepts text, JSON, or images and returns typed answers with probabilities, priced at $0.02 per million input tokens with free output. Perplexity says it scores highest on Hugging Face's new Decision Index 0.3 benchmark and costs half as much as v1.

AIAnthropic has released Claude Haiku 5.5, priced at $0.10 input and $0.50 output per million tokens up to 100,000 tokens, matching GPT-6 Luna. Beyond 100,000 tokens the price rises to $0.50 and $2.50, and the author found the new tokenizer uses about 1.25x as many tokens as Haiku 4.5 on the same long prompt. The model cannot disable reasoning and defaults to medium effort.

AIAnthropic's Claude Haiku 5.5 is now generally available in GitHub Copilot, a lightweight model built for fast, high-volume work such as subagents, quick edits, and terminal tasks. GitHub's early testing found it matched Claude Sonnet 5 on many coding tasks while using significantly fewer tokens and steps. It can be used in the GitHub Copilot app, CLI, or @code.

AIAnthropic has released Claude Haiku 5.5, its cheapest and fastest small model, priced at $0.10 per million input tokens and $0.50 per million output tokens for prompts up to 100K tokens. It keeps a 1M token context window, up to 128K output tokens, and is generally available on the Claude API, Amazon Bedrock, Google Cloud, Microsoft Foundry and Claude Platform on AWS. Anthropic reports 72.4% on OSWorld 2.1 (offline subset) versus 15.7% for Haiku 4.5, and the article notes that non-default temperature, top_p or top_k values return a 400 error.

AIGPT-6 with Intelligent UI begins rolling out globally in the ChatGPT Chat tab for Plus, Pro, Business, and Enterprise users today. The rollout expands to Free and Go tiers starting tomorrow. Plus, Pro, Business, and Enterprise get GPT-6 Sol, while Free and Go get GPT-6 Luna.

AIMatt Shumer says a setup pairing Opus or Sonnet with Haiku sub-agents is very likely the new alpha and that he plans to try it. The quoted Anthropic post introduces Claude Haiku 5.5 as its cheapest, fastest, and most capable small model, costing around 75% less to run than Claude Haiku 4.5.

AIAnthropic has introduced Claude Haiku 5.5, which it describes as the cheapest, fastest, and most capable small model it has released. On average, it costs around 75% less to run than Claude Haiku 4.5.

AIAnthropic's lightweight Claude Haiku 5.5 is now generally available in GitHub Copilot for fast, high-volume tasks such as subagents, quick edits, and terminal work. In early testing, it matched Claude Sonnet 5 on many coding tasks while using significantly fewer tokens and steps. The model is billed at provider list pricing under usage-based billing and is available to Copilot Pro, Pro+, Max, Business, and Enterprise users.

AIGoogle says users are already testing its newest image generation model, Nano Banana 2.1, and shares examples of the early results. The post provides no benchmark scores, pricing, or capability details.

AIClaude 5.5 Haiku is now available in OpenCode and Go. The post does not give further details about features, pricing, or availability limits.

AISubscribers to Claude's Max plan can claim monthly API credits: $100 for the $100 tier and $200 for the $200 tier. The credits work for any Claude model and can be used in the user's own apps and other agents. The author argues that bundling monthly API credits alongside a broad model lineup will make it hard for other model companies to compete.

AITibo, an OpenAI employee, says GPT-6 in Chat is the day's big release and that Codex and ChatGPT Work reached a new high of 40M active users. He also says a banked reset is being loaded into everyone's paid accounts, and the post is part of a three-day series with a Day 2 roundup quoted in it.

AIAnthropic's Claude Haiku 5.5 is much faster and 75% cheaper than Haiku 4.5, which launched October 15, 2025, less than a year earlier. Anthropic describes it as a significant step up over Haiku 4.5 across coding, computer use, and knowledge work.

AIOpenAI is releasing a new version of GPT-6 to all ChatGPT users, extending the model beyond text. The post says model and infrastructure improvements were combined to scale it to 1.2 billion users, and it pairs the release with Intelligent UI, which delivers fast, interactive, and visual answers.

Why it matters: The post names the rollout scope and points to model and infrastructure work behind serving the update, which shows how a large consumer launch is being scaled.

AIAnthropic's Claude Haiku 5.5 is described as a good Haiku, with a 100k token context window and roughly 10x lower cost than Claude Haiku 4.5. The quoted Claude announcement says it is the cheapest, fastest, and most capable small model Anthropic has released, costing about 75% less to run on average than Haiku 4.5.

AIAnthropic's Claude Haiku 5.5 is now available on Amazon Bedrock and Claude Platform on AWS. According to Anthropic, it is the fastest and most efficient model in the Claude 5.5 family and costs around 75 percent less than Claude Haiku 4.5 for most tasks. The post also covers pairing it with Claude Opus 5.5 as a subagent layer and provides Boto3, Converse, and Anthropic SDK examples for calling the model.

AIChatGPT now includes Intelligent UI, which lets GPT-6 Instant generate interface elements inside chat. The quoted OpenAI engineer says the team aimed to keep HTML's power while making the interface feel fast and native, and that post-training GPT-6 to judge when an interface helps remains an open challenge.

AIGoogle released EmbeddingGemma 2 on Hugging Face, and Paige Bailey called it a step toward open models for open science. The post links the model and cites earlier EmbeddingGemma-based projects, including medical, geographic, oncology, and PubMed embedding models.

AIAnthropic has released Claude Haiku 5.5, a small, fast model for high-volume, cost-sensitive tasks such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding and computer use capabilities.

AIAnthropic has released Claude Haiku 5.5, a small, fast model for high-volume, cost-sensitive tasks such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding and computer use capabilities.

AIOpenAI is rolling out GPT-6 and Intelligent UI in ChatGPT, adding interactive diagrams, calculators, and tools directly inside conversations. GPT-6 can also begin answering while still thinking, and access starts today for Plus, Pro, Business, and Enterprise users, with Free and Go users following tomorrow.

AILiquid AI released two open-weight multimodal decision models, d1-3B and d1-omni-600M, which return probability answers in one forward pass with zero output tokens. d1-3B scores 48.57 on Decision Index v0.2.1 and answers one question in 8 ms on an RTX 4090, while the models are licensed free for commercial use below $10 million in annual revenue.

AIAnthropic's Lydia Hallie says Claude Haiku 5.5 suits mostly reading, small edits, and tool calls that need little reasoning. The quoted @claudeai post introduces Haiku 5.5 as Anthropic's cheapest, fastest, and most capable small model, costing around 75% less to run than Claude Haiku 4.5.

AIAnthropic has released Claude Haiku 5.5, which it describes as the cheapest, fastest, and most capable small model it has released. On average it costs around 75% less to run than Claude Haiku 4.5, and the author says it is 10x cheaper than Haiku 4.5 under 100k tokens. It can be tried with computer use, workflows, and the API.

AIVercel says Anthropic's Claude Haiku 5.5, model ID anthropic/claude-haiku-5.5, is now available on AI Gateway. The company describes it as the fastest Claude model at standard speed, built for subagents and summarization, and the first Haiku to offer effort levels, with ZDR supported.