Compare / GLM-5.3 vs GLM-5.3 FlashX Legal
GLM-5.3 vs GLM-5.3 FlashX Legal
Which is cheaper, which is more capable, and which does better at each kind of work, from 14 results on 2 sources that measured both models.
Of the 14 results both models have, the better value on each. Results whose reported ranges overlap are too close to call.
Results as of 5 November 2026 (catalogue release 2026-11-05-44c5fb63d296).
GLM-5.3 or GLM-5.3 FlashX Legal? The short answer
They score about the same, so pick GLM-5.3 FlashX Legal: it costs 2.6 times less per game of bullet chess on BulletBench.
- Spring Prompt overall: GLM-5.3 36, GLM-5.3 FlashX Legal 34 (out of 100; how the score works).
- GLM-5.3 FlashX Legal is cheaper to run: $0.006 against $0.016 per game of bullet chess on BulletBench (2.6 times less).
- On our own benchmarks, on the results both models have: GLM-5.3 FlashX Legal does better for marketing planning.
Head to head
Every fact side by side
| GLM-5.3 | GLM-5.3 FlashX Legal | |
|---|---|---|
| Price per million tokens | $1.40 in · $4.40 out | $0.37 in · $1.25 out |
| Blended (3 in : 1 out) | $2.15 | $0.59 |
| Cheapest host, blended | $0.40 (Wafer, FP4) | – |
| Cost per game of bullet chess (BulletBench) | $0.016 | $0.006 |
| Cached input, per million | $0.26 cached input | – |
| Intelligence Index | 44.8 | – |
| Spring Prompt overall | 36 | 34 |
| Output speed, tokens a second | 87 | – |
| Context window | 1,048,576 tokens | 1,048,576 tokens |
| Released | 14 Aug 2026 | – |
| Weights | Open | Closed |
| Developer based in | China | China |
Prices are the developer's list price where we have read it, otherwise the typical host on OpenRouter; see every model's price. Intelligence and speed from Artificial Analysis.
Which is better for what
Each model's rank among the models on sale today, for each kind of work, from our own benchmarks and licensed sources. Further right is better; the better rank is in green.
Every shared result
Each model's best result on every measure both have, grouped by benchmark, with the setting that produced it. Under each measure, every model that benchmark has measured is a grey tick, best to the right, so you can see where the two sit in the field. The headline measures of each benchmark come first; the rest are under "Show all". Green marks the better value; where a source reports ranges that overlap, neither is marked.
| Measure | GLM-5.3 | GLM-5.3 FlashX Legal |
|---|---|---|
| BulletBench measured by Spring Prompt · 3 results | ||
| Cost per game · Bullet 60sUS dollars, lower is better 24 · 18 of 36 measured | $0.0156 | $0.0061low reasoning |
| Ladder Elo · Bullet 60sladder Elo, higher is better 33 · 23 of 36 measured | 33 | 358low reasoning |
| Games lost on time · Bullet 60s% of games, lower is better 31 · 18 of 36 measured | 83.3%low reasoning | 37.5%low reasoning |
| ROASBench measured by Spring Prompt · 3 results | ||
| Overall scorescore out of 100, higher is better 25 · 11 of 28 measured | 24.8 | 46.2 |
| Audience scorescore out of 100, higher is better 21 · 14 of 28 measured | 51.0 | 63.2 |
| Business scorescore out of 100, higher is better 25 · 10 of 28 measured | 12.9 | 44.9 |
Show all 14 results (8 more)
| Measure | GLM-5.3 | GLM-5.3 FlashX Legal |
|---|---|---|
| BulletBench measured by Spring Prompt · 2 results | ||
| Invalid moves · Bullet 60s% of moves, lower is better 1 · 1 of 36 measured | 0.0% | 0.0%low reasoning |
| Median move time · Bullet 60smilliseconds, lower is better 24 · 20 of 36 measured | 1.6 slow reasoning | 1.4 slow reasoning |
| ROASBench measured by Spring Prompt · 6 results | ||
| Consistency scorescore out of 100, higher is better 24 · 12 of 28 measured | 14.8 | 29.0 |
| Contribution profitsimulated US dollars, higher is better 26 · 7 of 28 measured | $9,718 | $695,680 |
| Cost of a runUS dollars, lower is better 11 · 13 of 28 measured | $0.13 | $0.16 |
| Months over budgetmonths of 12, lower is better 1 · 25 of 28 measured | 0 | 1 |
| Planning scorescore out of 100, higher is better 28 · 10 of 28 measured | 51.7 | 54.9 |
| Return on ad spendprofit per $1 spent, higher is better 26 · 10 of 28 measured | $0.01 | $0.55 |
Compare them with other models
- GLM-5.3 vs Muse Spark 1.3Most intelligent at $1–3 per million tokens
- GLM-5.3 vs Claude Haiku 5.5Cheapest with similar intelligence
- GLM-5.3 vs Claude Opus 5.5Most intelligent available today
- GLM-5.3 FlashX Legal vs Claude Opus 5.5Highest-scoring overall available today
- GLM-5.3 FlashX Legal vs Particle-1Just below overall
Quick answers
Is GLM-5.3 better than GLM-5.3 FlashX Legal?
They score about the same, so pick GLM-5.3 FlashX Legal: it costs 2.6 times less per game of bullet chess on BulletBench.
Which is cheaper, GLM-5.3 or GLM-5.3 FlashX Legal?
GLM-5.3 FlashX Legal is cheaper to run: $0.006 against $0.016 per game of bullet chess on BulletBench (2.6 times less).
Which is better for marketing planning, GLM-5.3 or GLM-5.3 FlashX Legal?
GLM-5.3 FlashX Legal ranks 11 of 28 models on sale for planning a year of ad spend without overspending, against 25 for GLM-5.3.
Which is better for speed under pressure, GLM-5.3 or GLM-5.3 FlashX Legal?
GLM-5.3 FlashX Legal ranks 17 of 31 models on sale for good decisions against a real clock (fast chess), against 29 for GLM-5.3.
Run GLM-5.3 and GLM-5.3 FlashX Legal on your own prompt
Benchmarks aren't your data. Try both side by side in the playground, with the cost of every answer.