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VECTOR WIREAI INTELLIGENCE
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DeepSeek-V4-Pro vs GLM-5.3

DeepSeek · released

Wins 1 of 7 areas

Facts

Z.ai · released

Wins 6 of 7 areas

Coding · Agents · Reasoning · Math · Long documents · Following instructions

GLM-5.3 is the stronger all-rounder.DeepSeek-V4-Pro is cheaper and better at facts.

Scores updated · 42 tests both models report · How we compare

What it costs

Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.

DeepSeek-V4-Pro$0.43 to read · $0.87 to write$1.30Price from Artificial Analysis
GLM-5.3$1.40 to read · $4.40 to write$5.80Price from Z.ai's own price page

DeepSeek-V4-Pro costs 78% less for the same work.

The biggest differences

The three tests each model wins by the widest margin. Scores are out of 100.

Where GLM-5.3 pulls ahead

  • Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+64.5points aheadGLM-5.370.4DeepSeek-V4-Pro5.9
  • Complex command-line tasks across many fieldsTerminal-Bench 4.0+27.3points aheadGLM-5.341.9DeepSeek-V4-Pro14.6
  • Extremely hard research-level math problemsFrontierMath Tier 4+26.9points aheadGLM-5.329.3DeepSeek-V4-Pro2.4

Where DeepSeek-V4-Pro pulls ahead

Every test, side by side

All 42 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingGLM-5.3

Full coding ranking

AgentsGLM-5.3

Full agents ranking

ReasoningGLM-5.3

Full reasoning ranking

FactsDeepSeek-V4-Pro

Full facts ranking

MathGLM-5.3

Full math ranking

Long documentsGLM-5.3

Full long documents ranking

Following instructionsGLM-5.3

Full following instructions ranking

Other results20 tests, not counted

Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.

Questions people ask

Which is better, DeepSeek-V4-Pro or GLM-5.3?

GLM-5.3 wins six of the seven areas where both have results: coding, agents, reasoning, math, long documents and following instructions. DeepSeek-V4-Pro wins facts, and costs 78% less.

Which is better for coding?

GLM-5.3. It wins 5 of the 5 coding tests both models report; DeepSeek-V4-Pro wins none.

Which is cheaper?

DeepSeek-V4-Pro costs $0.43 per million input tokens and $0.87 per million output tokens; GLM-5.3 costs $1.40 and $4.40. That makes DeepSeek-V4-Pro about 78% cheaper for the same work.

How do you compare the two?

We use the 42 benchmark tests both models have published scores on. The verdict counts the 22 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 20 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.