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GLM-5.3 FlashX

z-ai/glm-5.3-flashx

high-speed GLM-5.3 Flash with 1M context.

cmd --model z-ai/glm-5.3-flashx
Intelligence index
not yet scored
Output speed
not yet scored
Input
$0.37 /M
Output
$1.25 /M
Cache read
$0.07 /M
Agent-loop cost
$0.16 /M in
Context window
1M tokens
Released
Modalities

vs. the lineup

GLM-5.3 FlashX beside its stablemates and nearest rivals. The ◆ marks the best value in each column across every row shown.

pin a rival:
ModelIntelligenceCodingSpeedInput $/MOutput $/MBlended $/MContext
GLM-5.344.974.860.3$1.40$4.40$2.151M
GLM-5.3 Flash41.971.5113.9$0.15$0.50$0.241.05M
GLM-5.23468.872.3$1.40$4.40$2.151M
GLM-5.126.455.8$1.40$4.40$2.15200K
GLM-5.3 FlashX$0.37$1.25$0.591M
GLM-5.2 Fast$3$10.25$4.811M
DeepSeek V4 Pro (latest)pinned36.368.865.3$0.66$1.98$0.991M
DeepSeek V4 Flash (latest)pinned3569.1236.4$0.15$0.60$0.261M

usage calculator

How far a month of credits goes on GLM-5.3 FlashX.

Input tokensfresh prompt
800
Output tokensmodel reply
180
Cache read tokensre-read context
50K
cost / request $0.0043 · in $0.37 · out $1.25 · cache $0.07 per M
fresh input 7%output 5%cache reads 88%
Requests / 30 days
2.3K
$10 credits ÷ $0.0043 per request
~468 quick fixes~94 bug fixes~16 feature PRs

what real work costs

Real coding tasks priced end to end on GLM-5.3 FlashX, from a quick lookup to a full-repo agent run.

One agent task
$0.04
180K in at 75% cache hit, 12K out
What you pay
$0.22 /M
all-in across every token that task touched
Sticker input
$0.37 /M
cache reads bill at $0.07 /M instead
TaskTokens in · outGLM-5.3 FlashXMuse Spark 1.3 ContributorClaude Haiku 4.5
Quick lookup / one-liner8K · 1K$0.0021$0.0003$0.0065
Review a 500-line PR60K · 4K$0.01$0.0027$0.04
Fix a bug (agent loop)180K · 12K$0.04$0.0072$0.12
Refactor a module320K · 20K$0.08$0.01$0.21
Full-repo agent run900K · 45K$0.18$0.03$0.49

frequently asked

How much does GLM-5.3 FlashX cost?
$0.37/M input and $1.25/M output, cache reads $0.07/M. In an agent loop most input is cache-read, so the effective input rate is about $0.16/M.
Which plan do I need?
Available on Go and above.
How do I switch to it?
Run cmd --model z-ai/glm-5.3-flashx, or type /model in a session and pick it. You can switch mid-session without losing context.

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Benchmarks from Artificial Analysis (v4.3)commandcode.ai/models/glm-5-3-flashx