OpenAI Jalapeño
OpenAI's first custom chip, an LLM inference processor co-developed with Broadcom from first design to tape-out in nine months. Engineering samples run GPT-5.3-Codex-Spark at target frequency and power, with first deployment set for the end of 2026. Sources and verification dates.
Every published figure
Source per value- Owner The company that specified the chip and runs it in its own cloud, data centers or products.
- OpenAI 1
- Role What the owner says the chip is for: training, inference, both, or a general-purpose server CPU.
- Inference 1
- Design partner The ASIC house that co-designed or physically implemented the chip (Broadcom, Marvell, MediaTek, Alchip, GUC and others), as stated by the owner, the partner, a filing or named trade-press reporting. 'In-house' when the owner states it designed the chip itself, including through an acquired team such as Annapurna Labs.
- Broadcom 1
- Partner basis Who says so: the owner, the partner, or press reporting with the outlet named. A reported partner is not confirmed by the owner.
- Announced jointly by OpenAI and Broadcom (reported by CNBC). 1
- Precision note What the throughput figures mean: dense or sparse, which precision, per chip or per package, and any figure the owner states only in another unit.
- No throughput figures published yet; OpenAI says detailed benchmarks come later. 2
- Status Announced: public roadmap without verified deployment. Sampling: first silicon or limited internal use. Preview: customers can request early access, without a GA claim. Deployed: stated production use or general availability. Discontinued: program stopped.
- Sampling 2
- Announced Year the owner first announced the chip publicly.
- 2,026 1
- Deployment scale The largest deployment the owner or a named report states: chip counts, clusters, gigawatts or regions.
- Part of a 10 GW program of OpenAI-designed accelerators with Broadcom (announced October 2025); initial deployment end of 2026, ramp in 2027. 1
- How to get it How an outside buyer can use the chip: a named cloud instance or service, a product, or 'Internal only'.
- Internal only (serves ChatGPT and OpenAI's API) 1
Not verified in the sources reviewed: foundry, node, memory, memory capacity, memory bandwidth, bf16, fp16, mxfp8, mxfp4, mx8, mx4, fp8, int8, fp4, power, largest pod.
Sources
- CNBC: OpenAI unveils first chip as part of Broadcom deal accessed 2026-11-11
- Interesting Engineering: OpenAI unveils Jalapeño chip for large-scale inference accessed 2026-11-11
- Broadcom: OpenAI and Broadcom announce strategic collaboration to deploy 10 gigawatts of OpenAI-designed AI accelerators accessed 2026-11-11