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Model: "inflection-2.5"
FSDP+QLoRA: the Answer to 70b-scale AI for desktop class GPUs
qlora fsdp inflection-2.5 gpt-4 answer.ai hugging-face meta-ai-fair nvidia inflectionai model-training quantization memory-optimization gradient-checkpointing cpu-offloading fine-tuning model-sharding reinforcement-learning chain-of-thought benchmarking jeremy_howard tim_dettmers yann_lecun
Jeremy Howard and collaborators released a new tool combining FSDP, QLoRA, and HQQ to enable training 70b-parameter models on affordable consumer GPUs like RTX 4090s with only 24GB RAM, overcoming traditional memory constraints that required expensive data center GPUs costing over $150k. The approach shards quantized models across multiple GPUs and uses techniques like gradient checkpointing and CPU offloading to achieve efficient training on desktop-class hardware. The blogpost details challenges and solutions integrating these methods, highlighting a significant cost reduction from $150k to under $2.5k for training large language models. Additionally, Twitter recaps mention Inflection AI's Inflection-2.5 model rivaling GPT-4 in benchmarks with less compute, and Grok improving speed by 3x. Yann LeCun discusses multi-step reasoning training for LLMs.
Inflection-2.5 at 94% of GPT4, and Pi at 6m MAU
inflection-2.5 claude-3-sonnet claude-3-opus gpt-4 yi-9b mistral inflection anthropic perplexity-ai llamaindex mistral-ai langchain retrieval-augmented-generation benchmarking ocr structured-output video-retrieval knowledge-augmentation planning tool-use evaluation code-benchmarks math-benchmarks mustafa-suleyman amanda-askell jeremyphoward abacaj omarsar0
Mustafa Suleyman announced Inflection 2.5, which achieves more than 94% the average performance of GPT-4 despite using only 40% the training FLOPs. Pi's user base is growing about 10% weekly, with new features like realtime web search. The community noted similarities between Inflection 2.5 and Claude 3 Sonnet. Claude 3 Opus outperformed GPT-4 in a 1.5:1 vote and is now the default for Perplexity Pro users. Anthropic added experimental tool calling support for Claude 3 via LangChain. LlamaIndex released LlamaParse JSON Mode for structured PDF parsing and added video retrieval via VideoDB, enabling retrieval-augmented generation (RAG) pipelines. A paper proposed knowledge-augmented planning for LLM agents. New benchmarks like TinyBenchmarks and the Yi-9B model release show strong code and math performance, surpassing Mistral.