FREE GLM128K CONTEXT96K OUTPUTFREE TIERTEXT + CODE
GLM-4.5 Flash API Pricing
GLM-4.5 Flash is Zhipu's older free GLM-4.5 series model for reasoning, coding, and agent trials. The live vendor table lists $0/M input and $0/M output; access is free on the public Z.AI pricing page. Pulled directly from docs.z.ai daily.
Input - per 1M tokens
$0.00/M
Source Z.AI free
Output - per 1M tokens
$0.00/M
Context 128K free
Cached input - free
$0.00/M
Free per-token use free
Effective - agentic blend
$0.00/M
92/8 split - 82% cache
§ 01 / TERMINAL
Run the numbers.
Live calculator pre-loaded with current GLM-4.5 Flash rates. Tweak spend, output mix, or cache assumptions and share the URL to share the calculation.
$ /mo
Workload split
Prompt cache hit rate
Tokens you can process
—
Words equivalent (English)
—
Effective rate
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§ 02 / SCENARIOS
Real-world presets.
CODING AGENT
Prototype implementation
$0.000/task
CODE REVIEW
Pull request review
$0.000/review
RAG
Knowledge base answer
$0.000/query
CHATBOT
Support assistant
$0.000/turn
§ 03 / TOKENIZER
Paste text. See tokens. See cost.
Calibrated · measured on the vendor's tokenizer · 2026-06-10 Auto-counts as you type
Counts use a chars-per-token calibration measured on the vendor's own published tokenizer (zai-org/GLM-5, 2026-06-10). English prose is typically within a few percent; code and non-Latin scripts tokenize heavier. For billing-exact counts use the vendor's count-tokens API.
Characters 464
Words 73
Tokens (estimated) 88 tokens
Cost as input · uncached $0.000000 USD
Cost as output · uncached $0.000000 USD
Cost as cached input $0.000000 USD
| Model | Input /M | Output /M | Effective blended | Context | Best for |
|---|---|---|---|---|---|
| GLM-4.5 Flash Current | $0.00 cache $0.00 | $0.00 | $0.00 agentic 92/8 | 128K | Free GLM-4.5 fallback |
| GLM-4.7 Flash | $0.00 cache $0.00 | $0.00 | $0.00 same blend | 200K | Free registered-user tier |
| GLM-4.7 FlashX | $0.07 cache $0.01 | $0.40 | $0.05 pricier | 200K | Ultra-cheap GLM traffic |
| GLM-4.5 Air | $0.20 cache $0.03 | $1.10 | $0.14 pricier | 128K | Budget GLM-4.5 production |
| GLM-4.5 AirX | $1.10 cache $0.22 | $4.50 | $0.71 pricier | 128K | Fast GLM-4.5 production |
| DeepSeek V4 Flash | $0.14 cache $0.00 | $0.28 | $0.05 pricier | 1M | Budget reasoning and coding |
| Qwen3 Coder Flash | $0.30 | $1.50 | $0.40 pricier | 1M | Cheap code-focused Qwen |
Frequently asked.
Practical pricing questions, separated from calculator assumptions and regional tiers.
Q · 01 What is GLM-4.5 Flash priced at? +
GLM-4.5 Flash is listed as
$0/M input and $0/M output on the live Z.AI pricing table. This page stores USD per-million-token pricing, so the calculator treats the token charge as zero.Q · 02 How is the effective price calculated? +
AI//COST uses the same 92/8 agentic blend everywhere. With an 82% cache hit rate, GLM-4.5 Flash's effective blended cost is
$0/M.Q · 03 Is prompt caching priced separately? +
The Z.AI table lists cached input as free for GLM-4.5 Flash, matching the free input and output rows. For real deployments, verify account-level rate limits because a free token price does not guarantee unlimited throughput.
Q · 04 Are regional prices different? +
Z.AI publishes the official developer pricing page in USD. Chinese BigModel pages may surface overlapping model catalogs, but the quote tiles use the baseline row from the Z.AI developer pricing page, not a reseller or proxy price.
Q · 05 Is there a batch discount? +
No separate batch discount row is listed on the Z.AI pricing page for GLM-4.5 Flash. The quote tiles show real-time list pricing; batch economics should be treated as a separate calculator variant only when the vendor documents it.
Q · 06 How accurate is the tokenizer estimate? +
The browser widget uses a
zhipu-tokenizer-estimate chars-per-token estimate for English text. It is useful for rough planning, but actual billing comes from the vendor API usage fields and can differ for Chinese, code, or mixed-language prompts.