How much does GLM 5.3 Flash cost per million tokens?

$0.15 per million input tokens and $0.50 per million output tokens, as listed on OpenRouter on October 21, 2026.

Does GLM 5.3 Flash support prompt caching?

Yes. OpenRouter lists cached input at $0.03 per million tokens, against $0.15 for uncached input.

Is there a cheaper model as good as GLM 5.3 Flash?

Ling 3.1 Flash scores 41.1 on the Artificial Analysis Intelligence Index, within two points of GLM 5.3 Flash or above it, and costs $0.225 per million output tokens.

Has the price of GLM 5.3 Flash changed?

Yes, 3 times since October 15, 2026; the dates are listed on this page.

GLM 5.3 Flash API pricing

As of October 21, 2026, Z.ai GLM 5.3 Flash costs $0.15 per million input tokens and $0.50 per million output tokens through OpenRouter, with cached input at $0.03 per million.

GLM 5.3 Flash benchmarks and specs · Every Z.ai model's price

Input, per million tokens$0.15
Output, per million tokens$0.50
Cached input, per million$0.03
Context window1.05M tokens
Max output944K tokens
Output speed80 tok/s

What a request costs

Three fixed token mixes at the list price, without cache or batch discounts. For a whole month, use the calculator.

Cost of three workloads on GLM 5.3 Flash
Workload	Tokens	One request	1,000 requests	Fits the context window
Chat turn	1K input + 500 output tokens	$0.0004	$0.400	Yes
Repository review	50K input + 3K output tokens	$0.0090	$9.00	Yes
Agent loop	200K input + 10K output tokens	$0.035	$35.00	Yes
Solved coding task	One SWE-bench Verified attempt, divided by the share that succeed	$0.02	$20.00

Price history

We have recorded 3 price changes since we started reading the price daily on October 15, 2026.

October 15, 2026 First recorded: $0.15 input, $0.50 output
October 18, 2026 $0.50 to $0.20 output, $0.15 to $0.048 input
October 19, 2026 $0.20 to $0.16 output, $0.048 to $0.048 input
October 21, 2026 $0.16 to $0.50 output, $0.048 to $0.15 input

Cheaper models as good as GLM 5.3 Flash

Models within two points of GLM 5.3 Flash or above it on the Artificial Analysis Intelligence Index, with a lower output price. Cheapest first.

Ling 3.1 Flash$0.225 Overall 41.1 against 41.8 · 55% cheaper output

GLM 5.3 Flash pricing questions

How much does GLM 5.3 Flash cost per million tokens?: $0.15 per million input tokens and $0.50 per million output tokens, as listed on OpenRouter on October 21, 2026.
Does GLM 5.3 Flash support prompt caching?: Yes. OpenRouter lists cached input at $0.03 per million tokens, against $0.15 for uncached input.
Is there a cheaper model as good as GLM 5.3 Flash?: Ling 3.1 Flash scores 41.1 on the Artificial Analysis Intelligence Index, within two points of GLM 5.3 Flash or above it, and costs $0.225 per million output tokens.
Has the price of GLM 5.3 Flash changed?: Yes, 3 times since October 15, 2026; the dates are listed on this page.