r/singularity on Reddit: Introducing GPT‑5.3‑Codex‑Spark. An ultra-fast model for real-time coding in Codex
GPT-5.3-Codex-Spark is a research preview “small” model for real-time coding in Codex, optimized to feel near-instant (claimed 1000+ tokens/sec on ultra-low-latency hardware) and it’s the first milestone in OpenAI’s Cerebras partnership.
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