Baidu’s New AI Is Already Beating Top Models and Cost 94% Less to Build

Baidu, China’s equal of Google, formally launched ERNIE 5.1 late final week, and the headline quantity is difficult to disregard: The mannequin value roughly 94% much less to coach than comparable AI programs on the similar scale.

To place that in perspective, coaching a frontier AI mannequin sometimes prices a number of hundreds of thousands (if not billions) of {dollars} in compute. Baidu, which controls over 76% of China’s search market and trades on Nasdaq as BIDU, is claiming it pulled off the identical class of efficiency for a few twentieth of that.

The trick is named “multi-dimensional elastic pre-training.” As a substitute of constructing ERNIE 5.1 from scratch, Baidu extracted an optimized sub-network from its current ERNIE 5.0 structure—which it launched in January 2026—and compressed it down. Whole parameters dropped to about one-third of the unique. Lively parameters (those really doing work throughout a dialog) had been minimize in half. The result’s a leaner mannequin that inherited the information base of its bigger mum or dad with out repeating the complete coaching invoice.

On LMArena Search Enviornment—a leaderboard the place actual customers examine AI fashions on reside net search duties, scored by human desire—ERNIE 5.1 scored 1,223, touchdown fourth globally and first amongst all Chinese language fashions. Its agentic capabilities—how effectively it handles multi-step duties like filling spreadsheets or autonomously shopping the online—surpassed DeepSeek-V4-Professional, the earlier Chinese language benchmark-setter.

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ERNIE could sound like an unique title amongst western observers, nevertheless it’s really a serious mannequin in China. Baidu launched Ernie Bot in August 2023, and the chatbot reached 100 million customers in China by December of that 12 months—quicker than most Chinese language rivals, although nonetheless slower than ChatGPT’s world document two-month run to the identical milestone.

The effectivity angle echoes what DeepSeek did to the AI business in January 2025. When the Chinese language startup launched R1—a mannequin that matched OpenAI’s o1 at 98% decrease question value—it triggered a $600 billion wipeout in Nvidia’s market worth and compelled each main AI lab to rethink whether or not throwing compute at issues was the one viable technique. ERNIE 5.1 is a special sort of effectivity story—on the coaching aspect somewhat than inference—however the underlying message is similar: Chinese language labs preserve discovering methods to do extra with much less.

The post-training pipeline can also be value noting. Baidu constructed a four-stage reinforcement studying system it calls MOPD (Multi-Instructor On-Coverage Distillation). Reasonably than making an attempt to show each talent directly—which tends to trigger “seesaw results” the place, for instance, enhancing math efficiency tanks artistic writing—Baidu educated specialist professional fashions in parallel for code, reasoning, and agentic duties, then distilled all of them right into a single unified mannequin. A ultimate on-line reinforcement studying stage dealt with open-ended conversations and artistic output, preserving what the distillation course of could not seize effectively.

In idea it ought to imply all expertise are leveled when it comes to proficiency, with out one being prioritized over the opposite

On GPQA (Graduate-Stage Google-Proof Q&A, a benchmark measuring whether or not a mannequin can reply expert-level science questions that may’t be Googled), ERNIE 5.1 approaches the efficiency of main western closed-source fashions. On AIME26—the American Invitational Arithmetic Examination tailored for 2026, which checks superior problem-solving underneath competitors situations—the mannequin scored 99.6% when utilizing tool-assisted reasoning, trailing solely Gemini 3.1 Professional.

Baidu says ERNIE 5.1 is already rolling out throughout greater than 10 artistic and agentic platforms in China, together with AI roleplay platforms and quick drama era instruments. The mannequin is accessible at ernie.baidu.com and by way of API on Baidu’s AI Cloud platform.

Baidu is internet hosting its annual Create 2026 developer convention on Might 13–14 in Beijing, the place it plans to showcase ERNIE’s newest industrial functions. That occasion would be the subsequent knowledge level on how aggressively the corporate intends to push the mannequin into enterprise and world markets.