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

Baidu, China’s equal of Google, officially released 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 millions (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 known as “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 data base of its bigger guardian with out repeating the total coaching invoice.

On LMArena Search Area—a leaderboard the place actual customers evaluate 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 searching the net—surpassed DeepSeek-V4-Professional, the earlier Chinese language benchmark-setter.

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

The effectivity angle echoes what DeepSeek did to the AI trade in January 2025. When the Chinese language startup launched R1—a mannequin that matched OpenAI’s o1 at 98% lower query cost—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 unique sort of effectivity story—on the coaching facet relatively than inference—however the underlying message is similar: Chinese language labs maintain discovering methods to do extra with much less.

The post-training pipeline can be price noting. Baidu constructed a four-stage reinforcement studying system it calls MOPD (Multi-Trainer On-Coverage Distillation). Moderately than attempting to show each ability directly—which tends to trigger “seesaw results” the place, for instance, bettering math efficiency tanks inventive 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 closing on-line reinforcement studying stage dealt with open-ended conversations and inventive output, preserving what the distillation course of could not seize effectively.

In concept it ought to imply all abilities are leveled by way of 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 assessments superior problem-solving below competitors circumstances—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 inventive and agentic platforms in China, together with AI roleplay platforms and brief drama era instruments. The mannequin is accessible at ernie.baidu.com and through API on Baidu’s AI Cloud platform.

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