The naming is a bit odd - E4B is "4.5B effective, 8B with embeddings", so despite the name it is probably best compared with the 8B/9B class models and is competitive with them.
Qwen3.5-9B also scores 15/25 in thinking mode for example. The best 9B model I've found is Qwen3.5-9B-Claude-4.6-Opus-Reasoning-Distilled-v2 which gets to 17/25
gemma-4-E2B (4bit quant) scored 12/25, but is really a 5B model. That's the same as NVIDIA-Nemotron-3-Nano-4B which is the best 4B model I've found (yes, better than Qwen 4B).
That's a great score for a small model.