Gemma 4 Benchmarks and Performance
Gemma 4 31B ranks #3 among open models on Arena AI. The 26B MoE achieves #6 with only 4B active params. OpenRouter pricing is $0.14/$0.40 per million tokens for the 31B.
As of April 2026, Gemma 4 benchmarks show strong performance across the lineup: - 31B Dense: Ranked #3 open model on Arena AI with an estimated LMArena score of 1452. Scores 89.2% on AIME 2026 and 85.7% on GPQA Diamond with reasoning enabled. - 26B MoE: Ranked #6 open model on Arena AI with a score of 1441, despite using only 4B active parameters. - E4B: Outperforms the previous-generation Gemma 3 27B on benchmarks despite being much smaller. OpenRouter pricing for Gemma 4 31B (google/gemma-4-31b-it): $0.14 per million input tokens, $0.40 per million output tokens, 262K context window with up to 131K output tokens. The 26B MoE and smaller variants were not yet confirmed on OpenRouter at time of writing.