Is DeepSeek V4 Pro 0423 a good deal?

As of Sep 23, 2026, DeepSeek V4 Pro 0423 is dominated for Balanced on LMArena. GLM 5.3 Flash scores 27.9 higher and costs 80% less, with a covering envelope. 13 of 136 rated, priced standard models are undominated.

Inspect model evidence Compare differences & requirements

GLM 5.3 Flash is both better and cheaper than DeepSeek V4 Pro 0423: 27.9 points higher on LMArena and 80% less per million tokens, $0.95 cheaper at this mix.

DeepSeek V4 Pro 0423 takes text, returns up to 384,000 tokens from a 1,048,576-token context, and is listed by 16 sellers. Open weights, so it can also be self-hosted.

Compared against 136 rated, priced models on this lens: 1 model dominates it and gives up nothing, 5 more dominate it but give something up. DeepSeek V4 Pro 0423 scores 1444 at $1.18 per million tokens for this mix.

Envelope-safe replacements

Each row scores at least as high, costs no more, and covers this model’s context, output, modalities, tools, and reasoning. A cheaper narrower model is not listed here.

Model	LMArena	Effective $/M	You save
GLM 5.3 Flash	1471.9 +27.9	$0.237/M	80%

Higher score, lower price, named losses

Not a drop-in. The loss is why these are not a recommendation.

Model	LMArena	Effective $/M	You give up
GLM 5.2	1466.9	$0.998/M	max output
MiMo-V2.5-Pro	1464.8	$0.544/M	max output
Qwen3.7 Plus	1454.2	$0.560/M	context, max output
GLM 5	1446.3	$0.930/M	context, max output
Kimi K2.5	1445.6	$0.900/M	context, max output

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