How much do DeepSeek V4.1 Flash or GLM 5.3 cost per month?

For an example workload of 20 million input tokens and 5 million output tokens per month: DeepSeek V4.1 Flash: $7.00. GLM 5.3: $45. These are token-only estimates using the displayed rates, without caching discounts, additional tool charges or taxes. Actual bills depend on usage and endpoint pricing.

Which has a larger context window: DeepSeek V4.1 Flash or GLM 5.3?

DeepSeek V4.1 Flash: 1M tokens of context; maximum output 944K tokens. GLM 5.3: 1M tokens of context; maximum output 944K tokens. Context capacity and maximum output are separate limits. A larger context window allows more material in a request but does not guarantee more accurate answers.

Which is better for coding: DeepSeek V4.1 Flash or GLM 5.3?

DeepSeek V4.1 Flash: Artificial Analysis SciCode 51.9%. GLM 5.3: Artificial Analysis SciCode 59%. Compare coding results within the same evaluation, then test representative tasks from your own codebase. A missing score is not a zero, and a single benchmark does not establish the best model for every programming task.

How do Arena Elo, DesignArena, Intelligence Index and MMLU-Pro differ?

These evaluations measure different tasks and use different scales. Arena Elo and DesignArena ratings must remain separate, as must Artificial Analysis Intelligence Index and MMLU-Pro. Compare models within the same evaluation rather than combining scores. Missing results are marked Not listed, not treated as measured zeroes.

Which responds faster: DeepSeek V4.1 Flash or GLM 5.3?

DeepSeek V4.1 Flash: Artificial Analysis output speed 213 tokens/s; time to first token 1.05 seconds. GLM 5.3: Artificial Analysis output speed 72 tokens/s; time to first token 2.73 seconds. Output speed measures generation throughput, while time to first token measures the initial wait. Real-world latency also depends on the API provider, request size and load; missing measurements cannot establish a speed winner.

Do DeepSeek V4.1 Flash or GLM 5.3 support images, audio or video?

DeepSeek V4.1 Flash: listed input formats: text, image; output formats: text. GLM 5.3: listed input formats: text; output formats: text. Input and output support are different capabilities: accepting an image does not mean a model generates images. Confirm formats and file limits for the endpoint you plan to use.

Can prompt caching reduce the cost of DeepSeek V4.1 Flash or GLM 5.3?

DeepSeek V4.1 Flash: cached input price $0.02 per million tokens. GLM 5.3: cached input price $0.05 per million tokens. Caching may reduce charges for eligible repeated input when supported by the endpoint. A listed cached rate does not guarantee every request qualifies; cache duration, minimum token counts and any write charges depend on the provider.

Are DeepSeek V4.1 Flash or GLM 5.3 available through an API?

DeepSeek V4.1 Flash: catalog status active; API identifier deepseek-v4.1-flash; listed API hosts not listed. GLM 5.3: catalog status active; API identifier glm-5.3; listed API hosts not listed. Catalog status is not a live availability check. Before integrating, verify the provider's documentation, endpoint access, rate limits, regional availability and data-handling terms.

Models, measured side by side

DeepSeek V4.1 Flash vs GLM 5.3

Q: Do DeepSeek V4.1 Flash or GLM 5.3 support tool calling and structured outputs?

DeepSeek V4.1 Flash: listed features: Function calling, Structured outputs, JSON mode, Reasoning, Log probabilities, Deterministic seed, Prompt caching. GLM 5.3: listed features: Function calling, Structured outputs, JSON mode, Reasoning, Log probabilities, Deterministic seed, Parallel tool calls, Prompt caching. Only recorded capabilities are shown; an unlisted feature is not proof that it is unsupported. Availability can vary by API provider, so confirm tool calling and JSON schema support for your chosen endpoint.

Compare DeepSeek V4.1 Flash, GLM 5.3 by token pricing, context length, benchmark results, speed and tool support.

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Monthly workload

Input· million tokensOutput· million tokens

Monthly cost breakdown

InputOutput

DeepSeek V4.1 Flash

$7.00 / mo

GLM 5.3

$45 / mo

Performance comparison

DeepSeek V4.1 Flash

39.5

GLM 5.3

44.8

Overview

Overview	DeepSeek V4.1 Flash	GLM 5.3
Provider	DeepSeek	Z.ai
Released	2026-09-10	2026-08-18
Status	Active	Active
Input formats	textimage	text
Output formats	text	text

Provider

DeepSeek V4.1 Flash: DeepSeek
GLM 5.3: Z.ai

Released

DeepSeek V4.1 Flash: 2026-09-10
GLM 5.3: 2026-08-18

Status

DeepSeek V4.1 Flash: Active
GLM 5.3: Active

Input formats

DeepSeek V4.1 Flash: textimage
GLM 5.3: text

Output formats

DeepSeek V4.1 Flash: text
GLM 5.3: text

Pricing & capacity

Pricing & capacity	DeepSeek V4.1 Flash	GLM 5.3
Input / 1M tokens	$0.05	$1.40
Output / 1M tokens	$1.20	$3.39
Cached input / 1M	$0.02	$0.05
Monthly cost	$7.00	$45
Context window	1M	1M
Maximum output	944K	944K

Input / 1M tokens

DeepSeek V4.1 Flash: $0.05
GLM 5.3: $1.40

Output / 1M tokens

DeepSeek V4.1 Flash: $1.20
GLM 5.3: $3.39

Cached input / 1M

DeepSeek V4.1 Flash: $0.02
GLM 5.3: $0.05

Monthly cost

DeepSeek V4.1 Flash: $7.00
GLM 5.3: $45

Context window

DeepSeek V4.1 Flash: 1M
GLM 5.3: 1M

Maximum output

DeepSeek V4.1 Flash: 944K
GLM 5.3: 944K

Benchmarks & performance

Benchmarks & performance	DeepSeek V4.1 Flash	GLM 5.3
Arena Elo	Not listed	Not listed
MMLU-Pro	Not listed	Not listed
Intelligence Index	39.5	44.8
GPQA	Not listed	91.7%
Humanity’s Last Exam	39.2%	42.3%
SciCode	51.9%	59%
Output speed	213 tokens/s	72 tokens/s
Time to first token	1.05 s	2.73 s
DesignArena rating	1,325	Not listed
DesignArena win rate	52.1%	Not listed

Arena Elo

DeepSeek V4.1 Flash: Not listed
GLM 5.3: Not listed

MMLU-Pro

DeepSeek V4.1 Flash: Not listed
GLM 5.3: Not listed

Intelligence Index

DeepSeek V4.1 Flash: 39.5
GLM 5.3: 44.8

GPQA

DeepSeek V4.1 Flash: Not listed
GLM 5.3: 91.7%

Humanity’s Last Exam

DeepSeek V4.1 Flash: 39.2%
GLM 5.3: 42.3%

SciCode

DeepSeek V4.1 Flash: 51.9%
GLM 5.3: 59%

Output speed

DeepSeek V4.1 Flash: 213 tokens/s
GLM 5.3: 72 tokens/s

Time to first token

DeepSeek V4.1 Flash: 1.05 s
GLM 5.3: 2.73 s

DesignArena rating

DeepSeek V4.1 Flash: 1,325
GLM 5.3: Not listed

DesignArena win rate

DeepSeek V4.1 Flash: 52.1%
GLM 5.3: Not listed

Tools & features

Tools & features	DeepSeek V4.1 Flash	GLM 5.3
Function calling	Supported	Supported
Structured outputs	Supported	Supported
JSON mode	Supported	Supported
Reasoning	Supported	Supported
Built-in web search	Not listed	Not listed
Log probabilities	Supported	Supported
Deterministic seed	Supported	Supported
Parallel tool calls	Not listed	Supported
Prompt caching	Supported	Supported

Function calling

DeepSeek V4.1 Flash: Supported
GLM 5.3: Supported

Structured outputs

DeepSeek V4.1 Flash: Supported
GLM 5.3: Supported

JSON mode

DeepSeek V4.1 Flash: Supported
GLM 5.3: Supported

Reasoning

DeepSeek V4.1 Flash: Supported
GLM 5.3: Supported

Built-in web search

DeepSeek V4.1 Flash: Not listed
GLM 5.3: Not listed

Log probabilities

DeepSeek V4.1 Flash: Supported
GLM 5.3: Supported

Deterministic seed

DeepSeek V4.1 Flash: Supported
GLM 5.3: Supported

Parallel tool calls

DeepSeek V4.1 Flash: Not listed
GLM 5.3: Supported

Prompt caching

DeepSeek V4.1 Flash: Supported
GLM 5.3: Supported

API & availability

API & availability	DeepSeek V4.1 Flash	GLM 5.3
API identifier	`deepseek-v4.1-flash`	`glm-5.3`
API providers	Not listed	Not listed
Knowledge cutoff	Not listed	Not listed
Prices checked	Oct 8, 2026	Oct 8, 2026

API identifier

DeepSeek V4.1 Flash: deepseek-v4.1-flash
GLM 5.3: glm-5.3

API providers

DeepSeek V4.1 Flash: Not listed
GLM 5.3: Not listed

Knowledge cutoff

DeepSeek V4.1 Flash: Not listed
GLM 5.3: Not listed

Prices checked

DeepSeek V4.1 Flash: Oct 8, 2026
GLM 5.3: Oct 8, 2026

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