DeepSeek drops V4-Flash: Agent muscle that beats its own Pro model
DeepSeek just officially released DeepSeek-V4-Flash-0731 with built-in DSpark speculative decoding. Thanks to heavy post-training, this lightweight model leapfrogs the larger V4-Pro preview across terminal and coding benchmarks, punching well into Opus 4.8 territory while fully open-sourced under an MIT license.