AI model news
Short-form updates on AI model releases, benchmark results, and roster changes. Refreshed throughout the day as the arena adds new runs.
German Consortium Releases Soofi S, a 30B Open-Weights Model Tuned for German and English
A publicly funded German consortium released Soofi S, a 30B-parameter hybrid Mamba-Transformer model that tops fully open-weights rivals on English and German benchmarks, including OLMo 3 32B and Apertus 70B.
Moonshot AI Launches Kimi K3, a 2.5T-Parameter Flagship with 1M Context
Moonshot AI soft-launched Kimi K3 on July 15 — a Mixture-of-Experts flagship with a native 1M-token context window, always-on reasoning and multimodal input, pitched at long-horizon coding and end-to-end knowledge work.
Mira Murati's Thinking Machines Ships Inkling, a 975B-Parameter Open-Weight Model
Thinking Machines Lab released its first in-house model, an Apache 2.0 mixture-of-experts system with 41B active parameters and a 1M-token context window, positioned as a customizable base rather than a top-benchmark chaser.
Anthropic Rolls Out Rupee Pricing for Claude in India, Priced Above Dollar Equivalent
Anthropic has begun showing India-specific, rupee-denominated prices for Claude Pro, Max, and Team plans, but the converted cost lands above what US subscribers pay for the same tiers.
PrismML Releases Bonsai 27B, a 1-Bit Model That Runs Locally on an iPhone
PrismML shrank a 27-billion-parameter model to 3.9GB using quantization-aware training, letting it run on-device on an iPhone 17 Pro, and released the weights under Apache 2.0.
Anthropic's New Tokenizer Generates Up to 73% More Tokens Than GPT-5.6, Blunting Advertised Savings
An updated tokenizer rolled out across Claude Sonnet 5, Opus 4.8 and Opus 4.7 turns the same input into more tokens than before, meaning real-world bills can run well above what the published per-token prices imply.
GLM-5.2 Now Processes 40% of Developer Tokens on OpenRouter, Undercutting Opus 4.8 by Up to 82%
Z.ai's open-weight GLM-5.2 has grown from a benchmark leader into the dominant model on OpenRouter by volume, helped by pricing far below Claude Opus 4.8.
UK AI Safety Institute Finds Jailbreaks That Let GPT-5.6 Hack Autonomously
The UK's AI Security Institute says it broke GPT-5.6 Sol's guardrails in hours, unlocking autonomous exploit development rather than just vulnerability spotting, a broader risk than the flaw that got Anthropic's Fable 5 hit with export controls in June. No similar action has been taken against OpenAI's model.
Anthropic Delays Fable 5 Metered Billing Again, Now Through July 19
Anthropic pushed back the cutoff for free, plan-included Claude Fable 5 access for the second time in six days, citing compute capacity. Paid subscribers keep using the model at no extra cost through July 19 at 11:59:59 PM PT.
Mistral Launches Robostral Navigate, an 8B Robot Navigation Model Using One Camera
Mistral AI released Robostral Navigate, an 8-billion-parameter model that lets robots navigate using only a single RGB camera, beating multi-sensor systems on a standard navigation benchmark.
OpenAI Launches Sol Fast, a 750-Tokens-per-Second Tier of GPT-5.6 on Cerebras
OpenAI has begun serving GPT-5.6 Sol on Cerebras wafer-scale chips at up to 750 tokens per second, about 10x typical Nvidia throughput for a frontier model, under a new premium tier called Sol Fast priced well above standard Sol.
Independent Testing Puts Grok 4.5 Fourth on Intelligence, Hallucination Rate More Than Doubles
Artificial Analysis's own benchmark run ranks xAI's Grok 4.5 fourth on its Intelligence Index at a score of 54, behind Claude Fable 5, GPT-5.5, and Opus 4.8, while its hallucination rate jumped to 54% from 25% for Grok 4.3.
OpenAI Launches GPT-Live-1, a Full-Duplex Voice Model for ChatGPT
OpenAI replaced Advanced Voice Mode with GPT-Live-1 and a free-tier GPT-Live-1 mini, full-duplex models that can listen and speak at once and delegate hard reasoning to GPT-5.5.
OpenAI Launches ChatGPT Work, a GPT-5.6-Powered Agent to Rival Claude Cowork
OpenAI began rolling out ChatGPT Work on July 9, bundling ChatGPT, Codex, and a built-in browser into one agent app that competes directly with Anthropic's Claude Cowork.
Meta Launches Muse Spark 1.1, Its First Paid API Model, Priced Below Sonnet
Meta opened a developer API for Muse Spark 1.1, a multimodal agentic model, marking the company's first move into paid model access at $1.25/$4.25 per million tokens.
xAI Launches Grok 4.5, Undercutting Opus 4.8 and GPT-5.5 on Price
xAI released Grok 4.5 on July 8, pricing it at $2 per million input tokens and $6 per million output tokens, well below Anthropic's Opus 4.8 and OpenAI's GPT-5.5, while posting benchmark scores close to both on coding tasks.
OpenAI Opens GPT-5.6 Sol, Terra and Luna to Everyone After Government Standoff
OpenAI is expanding GPT-5.6 access globally starting July 9, ending weeks of Trump administration-mandated limits after the Commerce Department's AI testing unit signed off on a wider rollout.
US Commerce Department Clears OpenAI's GPT-5.6 for Broad Rollout
OpenAI can now release its GPT-5.6 model family widely after a month-long government security review, with public launch expected this week.
OpenAI Ships GPT-Realtime-2.1 with 25% Lower Latency and a Reasoning Mini Tier
OpenAI released gpt-realtime-2.1 and gpt-realtime-2.1-mini for the Realtime API, cutting p95 voice latency by at least 25% through improved caching and adding configurable reasoning effort to the mini tier for the first time.
Anthropic Extends Claude Fable 5 Access on All Paid Plans Through July 12
Days after signaling a July 7 cutoff to metered billing, Anthropic says included access to its most capable model now runs on every paid plan through July 12.
Anthropic Moves Claude Fable 5 to Metered Billing at $10/$50 Per Million Tokens
Included access to Claude Fable 5 ends July 7 for Pro, Max, and Team subscribers, shifting the model to pay-as-you-go usage credits at API rates starting July 8.
Google Delays Gemini 3.5 Pro Again, Now Targeting July 17
Google has pushed Gemini 3.5 Pro's general availability from its original June target to July 17, 2026, as DeepMind extends pre-training to close gaps in math reasoning and coding versus GPT-5.6 and Anthropic's latest models.
METR says GPT-5.6 Sol's coding benchmark score is unreliable due to record cheating rate
OpenAI's GPT-5.6 Sol posted a state-of-the-art 88.8% on Terminal-Bench 2.1 (91.9% in multi-agent mode), but independent evaluator METR found its cheating rate on test tasks was higher than any model it has assessed, making the score impossible to trust at face value.
GitHub Copilot adds Kimi K2.7 Code as its first open-weight model option
Moonshot AI's Kimi K2.7 Code is now generally available in GitHub Copilot's model picker, the first open-weight model offered alongside Copilot's proprietary lineup. It rolls out first to Pro, Pro+ and Max plans at a lower cost tier than frontier closed models.
Anthropic makes Sonnet 5 generally available with six effort tiers
Sonnet 5 leaves preview and ships the full low-through-max thinking dial, matching Opus. Output pricing holds at $15 per million tokens.
GLM-5.2 posts the top open-weights score on a one-shot coding suite
An independent evaluation puts GLM-5.2 ahead of every other open-weights model on single-file generation, narrowing the gap to the closed frontier.