GLM-5.3 vs Kimi K3: API Pricing & Benchmarks
GLM-5.3 vs Kimi K3 — or, searched the other way round, Kimi K3 vs GLM-5.3: official API prices, what the same workload costs on each, and every published benchmark score, side by side. Every figure comes straight from the data below; this page does not pick a winner.
Price per 1M tokens
| GLM-5.3 | Kimi K3 | |
|---|---|---|
| Input | $1.1952 | $3.00 |
| Output | $4.1831 | $15.00 |
| Blended | $1.9421 | $6.00 |
| Developer | Zhipu AI | Moonshot AI |
| Released | 2026-08-14 | 2026-07-16 |
GLM-5.3: Compare the two price sources — models.dev repository, docs.z.ai (cited by LiteLLM)
GLM-5.3: Sources disagree; check the official site
Prices: official list prices as recorded by models.dev (GLM-5.3) and models.dev (Kimi K3).
Cost of the same workload
| Workload | Tokens | GLM-5.3 | Kimi K3 | Difference |
|---|---|---|---|---|
| Short chat reply | 500 in / 300 out | 0.185¢ | 0.6¢ | GLM-5.3 cheaper by 0.415¢ |
| RAG query | 4,000 in / 500 out | 0.687¢ | $0.0195 | GLM-5.3 cheaper by $0.0126 |
| Long document summary | 50,000 in / 1,000 out | $0.0639 | $0.1650 | GLM-5.3 cheaper by $0.1011 |
| Code review of a 2k-line file | 30,000 in / 2,000 out | $0.0442 | $0.1200 | GLM-5.3 cheaper by $0.0758 |
| 1,000 chat replies/day for 30 days | 30,000 × (500 in / 300 out) | $55.57 | $180.00 | GLM-5.3 cheaper by $124.43 |
Cost = (input tokens ÷ 1,000,000 × input price) + (output tokens ÷ 1,000,000 × output price), using each model's own prices above.
Benchmarks
| Benchmark | GLM-5.3 | Kimi K3 |
|---|---|---|
| Epoch Capabilities Index (ECI) | 156.9 epoch · as of 2026-08-14 |
158.5 epoch · as of 2026-07-16 |
| Epoch Mock AIME accuracy | 91.1% epoch · as of 2026-08-14 |
97.2% epoch · as of 2026-07-16 |
| Epoch FrontierMath (T1–3) accuracy | 68.8% epoch · as of 2026-08-14 |
72.2% epoch · as of 2026-07-16 |
| Arena text rating | 1481 arena · as of 2026-10-28 |
1488 arena · as of 2026-10-28 |
| Arena coding rating (human preference votes, not task accuracy) | 1520 arena · as of 2026-10-28 |
1540 arena · as of 2026-10-28 |
| Arena math rating | 1499 arena · as of 2026-10-28 |
1499 arena · as of 2026-10-28 |
| Arena WebDev rating | 1623 arena · as of 2026-10-28 |
1656 arena · as of 2026-10-28 |
Full pages
GLM-5.3 pricing Kimi K3 pricing GLM-5.3 token counter Kimi K3 token counter
FAQ
Which is cheaper, GLM-5.3 or Kimi K3?
GLM-5.3 is cheaper on blended price: $1.9421 vs $6.00 per 1M tokens, which is $4.0579 less per 1M tokens (67.6% below Kimi K3).
How do the input and output prices of GLM-5.3 and Kimi K3 compare?
GLM-5.3 costs $1.1952 per 1M input tokens and $4.1831 per 1M output tokens. Kimi K3 costs $3.00 per 1M input tokens and $15.00 per 1M output tokens.
What are the ECI scores of GLM-5.3 and Kimi K3?
GLM-5.3 scores 156.9 on the Epoch Capabilities Index (ECI); Kimi K3 scores 158.5 on the Epoch Capabilities Index (ECI).
Where does the GLM-5.3 vs Kimi K3 comparison data come from?
Prices come from models.dev and LiteLLM (open MIT-licensed catalogs); benchmark scores come from Epoch AI and LMArena (open CC BY 4.0 datasets). This page states the numbers side by side and does not pick an overall winner — see /data-sources/.