Z.ai
GLM-5.3-Flash
GLM-5.3-Flash scores 1607 on WebDev Arena — rank 13 of 29 models we track with a published score and costs $0.24 per 1M blended tokens on the API — it is the highest-scoring model you can buy for $0.24 or less.
API price
$0.24
per 1M blended tokens
WebDev Arena
1607
rank 13 of 29 tracked models
Benchmark scores
| Benchmark | Score | Rank | Source | Published |
|---|---|---|---|---|
| WebDev Arena | 1607default | #13 of 29 | LMArena | 2026-10-19 |
| FrontierCode | 31.8%max | #19 of 25 | Epoch AI Benchmarking Hub | 2026-08-20 |
| FrontierSWE | 18.1%max | #11 of 12 | Epoch AI Benchmarking Hub | 2026-08-20 |
| DeepSWE | 63.4%max | #6 of 12 | Epoch AI Benchmarking Hub | 2026-08-20 |
| CursorBench | 36.8%max | #9 of 10 | Epoch AI Benchmarking Hub | 2026-08-20 |
The rank is among the 29 models we track with a published score for that benchmark — not the full leaderboard of the source, which lists many models we do not track. Where a source publishes several reasoning-effort settings, we show the model's best listed result.
API price
- Input
- $0.15 per 1M tokens
- Output
- $0.50 per 1M tokens
- Blended (3 input : 1 output)
- $0.24 per 1M tokens
Cached input and storage are listed separately by the vendor.
Checked 2026-10-21 · source
Where it sits
WebDev Arena score against API price, with every model we can price and score on the same benchmark. Up and to the left is better.
- Value frontier
- On the frontier
- Cheaper models on the frontier
- Claude Haiku 5.51586 · $0.20
Plans that include GLM-5.3-Flash
- Command Code GOAT
Command Code
- OpenCode Go
OpenCode
Other Z.ai models
Common questions
- How much does GLM-5.3-Flash cost?
- $0.15 per 1M input tokens and $0.50 per 1M output tokens, which is $0.24 on a 3:1 input:output mix. The price was checked on 2026-10-21.
- Which subscription plans include GLM-5.3-Flash?
- 5 of the plans we track list it by name: Command Code GOAT ($10/mo), OpenCode Go ($10/mo), GLM Coding Plan Lite ($18/mo), GLM Coding Plan Pro ($72/mo) and 1 more.
- How does GLM-5.3-Flash rank on WebDev Arena?
- It ranks 13 of 29 models we track with a published WebDev Arena score, at 1607. The rank is among the models on this site, not the full LMArena leaderboard.
- Is GLM-5.3-Flash the best value for coding?
- Yes. On our chart it is the highest-scoring model you can buy for $0.24 or less on WebDev Arena.
- What is the cheapest way to use GLM-5.3-Flash?
- Command Code GOAT is the cheapest subscription we track that lists it, at $10/month. Per-token API pricing is listed separately above.