
Evals @MistralAI | Previously, PhD @Cambridge_Uni
Cambridge
Joined December 2022
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Jonathan Roberts retweeted
nothing to report
opus 5.5 max looks on/above trend for the ai futures model
(added to the eci graph from the august update)
wide CIs yada yada
Jonathan Roberts retweeted

Mistral AI@MistralAIOct 6
🇫🇷
FranceConnected via WebAccount-level information, not a live location or per-post device.
Mistral Large 4 is one of the world's strongest AI models for cybersecurity.
Jonathan Roberts retweeted

Mistral AI@MistralAIOct 6
🇫🇷
FranceConnected via WebAccount-level information, not a live location or per-post device.
Meet Mistral Large 4, aka Le Chonk.
• 1T parameters, natively multimodal. 49B active.
It is the best open weights model from US or Europe on aggregated benchmarks.
• State-of-the-art on critical workloads, including cyber defense, manufacturing and finance and it surpasses closed frontier models on visual grounding.
• Forged in Europe end-to-end and is deployable from Europe via our own Mistral Cloud infrastructure.
• Available to all via API today. Working with cybersecurity partners privately.
Open weights release end of October.
🤖 Made with AI
Jonathan Roberts retweeted
Now let’s take a look at how Muse Spark 1.2 performs across visual reasoning, chart understanding, and knowledge-intensive tasks.
Jonathan Roberts retweeted
We can finally talk about it:
We found a way to extract hidden reasoning of frontier models using a vulnerability in the APIs of every frontier AI company.
We verified that our reasoning token count matches billed API thinking tokens 1:1 for most of the prompts we queried.
Jonathan Roberts retweeted
I’m looking for a PhD student with UK home fee status to join my lab at Cambridge starting this October. If you’re interested and have research experience in multimodal spatial modeling or vision-based robot learning, email me your CV. Funding deadline is approaching very soon.
Jonathan Roberts retweeted
some thoughts on 2025.
broadcast to literally tens of subscribers
link below
Jonathan Roberts retweeted
🚀 New paper!
arxiv.org/abs/2511.16655
Recently, Cambrian-S released models & two benchmarks (VSR & VSC) for “spatial supersensing” in video!
We found:
1️⃣ Simple no-frame baseline (NoSense) ~perfectly solves VSR!
2️⃣ Tiny sanity check collapses Cambrian-S perf to 0% on VSC!
🧵👇
Jonathan Roberts retweeted
🚀New Paper
arxiv.org/abs/2510.20860
We conduct a systematic data-centric study for speech-language pretraining, to improve end-to-end spoken-QA! 🎙️🤖
Using our data-centric insights, we pretrain a 3.8B SpeechLM (called SpeLangy) outperforming 3x larger models!
🧵👇
Jonathan Roberts retweeted
New opening for Assistant Professor in Machine Learning @Cambridge_Eng closing on 22 Sept 2025:
jobs.cam.ac.uk/job/49361/
Jonathan Roberts retweeted
We just shipped Gemini 2.5 Deep Think
it doesn't just recall research papers - it fuses ideas across papers in ways I haven't seen before
this level of capability demands careful evaluation
model card below 👇
Jonathan Roberts retweeted
#ACL2025NLP Introducing GAMEBoT—a competitive battle arena for LLM reasoning!
We pit 17 top LLMs against each other in 8 strategic games. Who will outsmart whom? 🧠⚔️
We break down their reasoning into clear, verifiable steps. No black boxes—just transparent evaluation.
Jonathan Roberts retweeted
🚀New Paper!
arxiv.org/abs/2504.07086
Everyone’s celebrating rapid progress in math reasoning with RL/SFT. But how real is this progress?
We re-evaluated recently released popular reasoning models—and found reported gains often vanish under rigorous testing!! 👀
🧵👇
Jonathan Roberts retweeted
🕵🏻💬 Introducing Feedback Forensics: a new tool to investigate pairwise preference data.
Feedback data is notoriously difficult to interpret and has many known issues – our app aims to help!
Try it at app.feedbackforensics.com
Three example use-cases 👇🧵
Jonathan Roberts retweeted
How to evaluate models as they get stronger and stronger, without saturating benchmarks—the million 💵 question!
Introducing ZeroBench, an extremely hard visual reasoning benchmark that currently has a very high “headroom”—all current frontier models get 0 perf.
Checkout full🧵
Jonathan Roberts retweeted
📽️📺Explainer video for the GRAB Benchmark youtu.be/XW3YdNATjIU?si=Wj5o… via @YouTube by @SamuelAlbanie
Jonathan Roberts retweeted
🚀New Paper: Active Curation Effectively Distills Multimodal Models
arxiv.org/abs/2411.18674
Smol models are all the rage & knowledge distillation (KD) is key for model compression!
We show how data curation can effectively distill to yield SoTA FLOP-efficient {C/Sig}LIPs!!
🧵👇
Jonathan Roberts retweeted
🚨This week’s top AI/ML research papers:
- Mixture-of-Transformers
- BitNet a4.8
- LoRA vs Full Fine-tuning: An Illusion of Equivalence
- Mixtures of In-Context Learners
- Emergence of Hidden Capabilities
- DimensionX
- The Surprising Effectiveness of Test-Time Training for Abstract Reasoning
- OpenCoder: The Open Cookbook for Top-Tier Code LLMs
- ReCapture
- Needle Threading
- M3DocRAG
- Controlling Language and Diffusion Models by Transporting Activations
- Why Do We Need Weight Decay in Modern Deep Learning?
- "Give Me BF16 or Give Me Death"? Trade-Offs in LLM Quantization
- Adaptive Caching for Faster Video Generation with Diffusion Transformers
- Constant Acceleration Flow
- Randomized Autoregressive Visual Generation
- Physics in Next-token Prediction
- In-Context LoRA for Diffusion Transformers
- Balancing Pipeline Parallelism with Vocabulary Parallelism
- EoRA: Eigenspace Low-Rank Approximation
- Self-Consistency Preference Optimization
- How Transformers Solve Propositional Logic Problems: A Mechanistic Analysis
- LASER: Attention with Exponential Transformation
- Photon: Federated LLM Pre-Training
- Attacking Vision-Language Computer Agents via Pop-ups
- Hunyuan-Large
- Context Parallelism for Scalable Million-Token Inference
- Stealing User Prompts from Mixture of Experts
- Deep Learning Through A Telescoping Lens: A Simple Model Provides Empirical Insights On Grokking, Gradient Boosting & Beyond
- Does your LLM truly unlearn? An embarrassingly simple approach to recover unlearned knowledge
overview for each + authors' explanations
read this in thread mode for the best experience
Jonathan Roberts retweeted
🚀New Paper: "A Practitioner's Guide to Continual Multimodal Pretraining"!
arxiv.org/abs/2408.14471
🌐Foundation models like CLIP need constant updates to stay relevant. How to do this in the real-world?
Answer: Continual Pretraining!!
We studied how to effectively do this.🧵👇
Jonathan Roberts retweeted
Neat guide on continual multimodal pretraining.
It also introduces FoMo-In-Flux, a large-scale fine-grained and long horizon continual pertaining benchmark.
arxiv.org/abs/2408.14471

























