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Announcing the Recipient of the 2026 LMSYS PhD FellowshipLMSYS BoardJune 08, 2026We are delighted to announce the first recipient of the LMSYS Fellowship Program: Will Lin. Following the launch of…
The next generation of speculative decoding: DFlash and Spec V2Z Lab, Modal, and SGLang TeamsJune 15, 2026Using Modal and Z Lab's DFlash speculative decoding models with SGLang’s newly default Spec…
MOSS-TTS Local Transformer v1.5 on SGLang-Omni: Serving Native-Streaming 48 kHz SpeechMOSI, OpenMOSS Team & SGLang-Omni TeamJune 17, 2026Today we are announcing end-to-end serving for…
Optimizing Ling-2.6-1T on TPU with SGLang-JAX: Hiding MoE Data Movement Behind Compute with One Pallas KernelPrayer, JamesBrianD, Haolin Fu, Haoguang Cai, Qinghan ChenJune 17, 2026SGLang-JAX now…
Improving DeepEP MoE Load Balance in SGLang with Waterfill and LPLBNVIDIA TeamJune 26, 2026TL;DR Mixture-of-Experts (MoE) models rely on Expert Parallelism (EP) to scale inference across multiple…
In the June 2026 YZ Index evaluation of 11 models, Doubao Pro's main ranking score dropped from 98.61 yesterday to 84.77 today, a decline of 13.8 points. The code execution dimension fell 25 points from 100.00 to 75.00, accounting for almost the entire drop.
In the June 29, 2026 YZ Index Smoke Lite test, Claude Opus 4.7 ranked first with a perfect 100 on the main leaderboard, 100 on execution, and 100 on compliance [pass], achieving full marks in both execution and compliance.
In the latest WDCD cycle (Run #196), all eight evaluated models showed positive changes, with none declining. Claude Opus 4.7 recorded the largest single-model increase of 19.8 points, jumping to 89.29 points and entering the top three.
In the WDCD Compliance Test, the safety compliance scenario scored the lowest on average across all models, with the highest score being only 3.57/4 for deepseek-v4-pro, while claude-sonnet-4.6 scored only 2.57/4.
In WDCD tests, Grok 4 maintains a 1.83/2 honesty rate with zero crashes in R3, while both Claude Sonnet 4.6 and GPT-o3 suffer six complete R3 crashes each (17.1%). The data reveals systematic degradation across three pressure rounds, with overall honesty dropping to 1.63/2 in the final stage.
Gemini 3.1 Pro leads the WDCD compliance ranking with 93.57 points (R1=1.00, R2=0.97, R3=1.77/2), while ERNIE Bot 4.5 ranks 11th with 75.71 points (R1=0.89, R2=0.60, R3=1.54/2).
In the June 2026 Smoke review of the YZ Index, Claude Sonnet 4.6's main score fell from 96.45 to 70.52, code execution dropped from 100.00 to 50.00, while material constraint rose from 92.10 to 95.60.
In today's Smoke evaluation of the YZ Index, Claude Opus 4.7 saw its main score drop from 97.12 to 71.47, a decline of 25.7 points, driven entirely by the code execution dimension halving from 100.00 to 50.00.
In the YZ Index Smoke tests from June 23 to 28, 2026, ERNIE Bot 4.5 showed the largest decline, dropping 37.2 points from 98.74 to 61.52, with an average of 82.1, while multiple models experienced fluctuations exceeding 28 points. Only Doubao Pro maintained a slight upward trend, emerging as the sole stable performer.
In the Smoke lightweight benchmark on June 28, 2026, Doubao Pro topped the main leaderboard with 98.61 points (Execution 100, Material Constraint 96.9). Claude Opus 4.7 and Sonnet 4.6 saw their Execution scores drop from 100 to 50, causing significant ranking declines.
In the YZ Index from June 27, 2026, Smoke lightweight evaluation, Claude Opus 4.7 ranked first on the main leaderboard with 97.12 points, achieving a perfect 100 points in code execution and 93.6 points in material constraint.
In the June 2026 YZ Index evaluation of 11 models, Qwen3 Max's code execution score plummeted from 100.00 to 50.00 in a single day. However, the main ranking only dropped by 1.5 points, as gains in material adherence and side metrics offset the decline.
In the June 2026 YZ Index test of 11 models, Claude Opus 4.7 Smoke's main benchmark score dropped from 100.00 yesterday to 72.50 today, with the code execution dimension falling directly from 100.00 to 50.00.
In the YZ Index Smoke Lightweight Evaluation on June 24, 2026, ERNIE Bot 4.5's main leaderboard score plunged 34.1 points to 64.63, with its execution dimension dropping directly from 100 to 50.
