2026-04 Monthly Summary (tt-xla) focusing on CI-driven test reliability and coverage for model validation.

In March 2026, delivered measurement-focused capabilities and cross-system tooling, improved stability, and expanded test coverage across core TT components. Key outcomes include the introduction of VLLM benchmarking with config-driven tests, enhanced system descriptor handling for cross-system compilation, and a critical bug fix to shard status handling in the compiler frontend. Key accomplishments: implementation of vLLM benchmarks configured via VLLMBenchmarkConfig with tests for llama-3.2-3b and llama-3.2-3b-batch32; addition of system descriptor loading and compile-only mode to enable cross-system builds with hardware-agnostic descriptors; and a fix for shard status propagation in GSPMD graphs by constraining status application to public functions and reinstating updateShardStatusForResult for GSPMD graphs.

February 2026 monthly recap: Delivered notable features and stability fixes across tt-forge and tt-xla that enhance performance evaluation, onboarding, and reliability for large-model workflows. Key achievements include expanding the TP Benchmark Suite, shipping a ready-to-run gpt-oss-20b generative example, enabling system descriptor persistence, and introducing MLACache validation tests, along with sharding robustness fixes to support variable tensor shapes.

January 2026 monthly highlights focusing on performance visibility, benchmarking expansion, and XLA graph compatibility across the TT stack. Delivered concrete features, stabilized key workflows, and broadened benchmarking coverage to accelerate performance-driven decisions for model deployment and development.