刺刀见红的模型搏杀 V4 Flash vs 5.6 Luna

2026年7月31日，GPT 5.6 Luna宣布降价80%，而OpenRouter直接在这个基础上再降50%。Luna的价格直接降到Deepseek V4区间…

On July 31, 2026, GPT 5.6 Luna announced an 80% price cut, and OpenRouter slashed another 50% on top of that. Luna's pricing fell straight into DeepSeek V4 territory...

同一天，Deepseek直接宣布正式版V4 Flash上线实测。很多性能接近或者超过预览版的Deepseek V4 Pro，而在Agent能力上多相基准测试直接超过GLM 5.2。
RRLab直接做了Bench，在简单任务的refactor测试中比Luna多了一轮、bug-fix测试中轮数和Luna持平但速度比Luna快近40%。而在复杂任务的add-validation测试中直接碾压Luna（3轮完成任务、Luna花了14轮）。

That same day, DeepSeek directly announced the official V4 Flash was live for testing. Performance was close to or exceeded the preview version of DeepSeek V4 Pro, and on multi-phase agent benchmarks it surpassed GLM 5.2 outright.
RRLab ran its own benchmark. In simple refactor tasks it took one more round than Luna; in bug-fix tasks it matched Luna's rounds but was nearly 40% faster. And in the complex add-validation task, it completely crushed Luna — finishing in 3 rounds versus Luna's 14.

闭源阵营和开原阵营在低价模型上直接来了一次"刺刀见红的搏杀"！
前几天，西大还在为模型不该开源闹。因为Kimi K3的开源直接捅了肺管子！而7月31日，直接来了一次正面对抗。
期待Deepseek V4 Pro的正式版在经过三个多月的后训练优化后，会有怎样的表现…加油！

Closed-source and open-source camps just went at it in a "bayonet fight" in the low-cost model space!
A few days ago, the West was still arguing that models shouldn't be open-sourced — Kimi K3's open-source release had hit a nerve. And then July 31 brought a direct head-on confrontation.
Looking forward to seeing what the official DeepSeek V4 Pro release will look like after three-plus months of post-training optimization... Go!