Inside OpenAI’s Brain Split: Why o4-mini Scores 68.1% on SWE-Bench and GPT-4.1 Hits 95% on SQL

Author(s): R. Thompson (PhD)

Originally published on Towards AI.

OpenAI’s April 2025 release of o4-mini and GPT-4.1 marks a major inflection point in the development of next-gen artificial intelligence. These two models don’t simply iterate on existing strengths — they branch into distinct domains of AI functionality. GPT-4.1 focuses on vast memory, coherence, and high-performance code generation. o4-mini emphasizes reasoning depth, multimodal processing, and cost-effective intelligence. This dual-launch redefines what it means to choose “the right model” for your specific use case.🧠

Whether you are architecting intelligent agents, running inference on terabytes of legal or financial documents, or generating analytical workflows for academic research — understanding the technical trade-offs and performance profiles of these models is key. This article breaks them down, piece by piece.

We also invite readers to explore a synergistic framework worth checking out: Graphite: The AI Framework That Feels Alive and Thinks in Events.

When AI Agents Start Dancing

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🔹 GPT-4.1: The Contextual Titan Built for Scale and Structure

Launched on April 14, 2025, GPT-4.1 builds on the GPT lineage with architectural tweaks, enhanced alignment, and a staggering 1 million-token context window. That’s about 750,000 words — enough to feed the model entire code repositories, book-length documents, or week-long chat threads without cutting corners.

It comes in three variants:

• Standard: Full-power… Read the full blog for free on Medium.

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Published via Towards AI