CP

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

Cheapest plan with it

Command Code GOAT

$10/month

Benchmark scores

BenchmarkScoreRankSourcePublished
WebDev Arena1607default#13 of 29LMArena2026-10-19
FrontierCode31.8%max#19 of 25Epoch AI Benchmarking Hub2026-08-20
FrontierSWE18.1%max#11 of 12Epoch AI Benchmarking Hub2026-08-20
DeepSWE63.4%max#6 of 12Epoch AI Benchmarking Hub2026-08-20
CursorBench36.8%max#9 of 10Epoch AI Benchmarking Hub2026-08-20

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.

GLM-5.3-Flash on the WebDev Arena vs price chart$0.14$2.0$29180016001400GLM-5.3-FlashAPI price per 1M blended tokensWebDev Arena
Value frontier
On the frontier
Cheaper models on the frontier
Claude Haiku 5.51586 · $0.20

Plans that include GLM-5.3-Flash

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.