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Z.ai: GLM 5.3 Flash pricing

GLM-5.3-Flash is a native multimodal model from Z.ai. It is suited for efficient coding and long-horizon agent tasks. Z.ai: GLM 5.3 Flash from OpenRouter costs $0.150 per 1M input tokens and $0.500 per 1M output tokens. Cached input is $0.030 per 1M. Context window 1,048,576 tokens.

API id z-ai/glm-5.3-flash · OpenRouter · source · updated 2026-11-10 · general-purpose

$0.150
Input / 1M tokens
$0.500
Output / 1M tokens
$0.030
Cached input / 1M
1M
Context window

Z.ai: GLM 5.3 Flash specifications

Provider
OpenRouter
API id
z-ai/glm-5.3-flash
Model type
general-purpose
Context window
1M tokens
Max output
944K tokens
Currency
USD
Price source
Provider API
Last checked
2026-11-10

Tags

  • fast
  • vision

GLM-5.3-Flash across providers

The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.

ProviderInput /1MCached /1MOutput /1M1M in + 1M outvs vendor
Zhipu AI (GLM)VendorCheapest
$0.150$0.030$0.500$0.65—
OpenRouterHostviewing
$0.150$0.030$0.500$0.65—
$0.150$0.030$0.500$0.65—

What Z.ai: GLM 5.3 Flash costs in practice

Estimated cost at common usage volumes
WorkloadInput tokensOutput tokensEstimated cost
Short chat turn1,000500$0.0004
Document summary50,0002,000$0.0085
1M tokens in, 200K out1,000,000200,000$0.25

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Z.ai: GLM 5.3 Flash price history

RecordedInput /1MOutput /1M
2026-11-10$0.150$0.500
2026-11-08$0.034$0.083
2026-11-05$0.150$0.500
2026-11-04$0.027$0.100
2026-11-02$0.029$0.092
2026-11-01$0.010$0.170
2026-10-31$0.020$0.124
2026-10-30$0.046$0.070
2026-10-29$0.046$0.074
2026-10-24$0.150$0.500
2026-10-23$0.005$0.199
2026-10-22$0.011$0.171

Common questions

How much does Z.ai: GLM 5.3 Flash cost per 1M tokens?
Z.ai: GLM 5.3 Flash costs $0.150 per 1M input tokens and $0.500 per 1M output tokens on the standard tier. Cached input is $0.030 per 1M.
What is Z.ai: GLM 5.3 Flash's context window?
Z.ai: GLM 5.3 Flash accepts up to 1,048,576 tokens in a single request, and can return up to 943,717 output tokens.
Is there a cheaper OpenRouter model than Z.ai: GLM 5.3 Flash?
Yes. Free Models Router is free per 1M input tokens versus $0.150 for Z.ai: GLM 5.3 Flash, with a 200,000 token context window.
Where does this Z.ai: GLM 5.3 Flash price come from?
From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

Other OpenRouter models

See all OpenRouter pricing →