How much do DeepSeek V4 Flash 0423 or gpt-oss-20b cost per month?

For an example workload of 20 million input tokens and 5 million output tokens per month: DeepSeek V4 Flash 0423: $0.88. gpt-oss-20b: $0.81. 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 Flash 0423 or gpt-oss-20b?

DeepSeek V4 Flash 0423: 1M tokens of context; maximum output 944K tokens. gpt-oss-20b: 131K tokens of context; maximum output 33K 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 Flash 0423 or gpt-oss-20b?

DeepSeek V4 Flash 0423: Artificial Analysis SciCode 50.3%. gpt-oss-20b: Artificial Analysis SciCode 38.9%. 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 Flash 0423 or gpt-oss-20b?

DeepSeek V4 Flash 0423: Artificial Analysis output speed 215 tokens/s; time to first token 0.95 seconds. gpt-oss-20b: Artificial Analysis output speed 207 tokens/s; time to first token 0.85 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 Flash 0423 or gpt-oss-20b support images, audio or video?

DeepSeek V4 Flash 0423: listed input formats: text; output formats: text. gpt-oss-20b: 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 Flash 0423 or gpt-oss-20b?

DeepSeek V4 Flash 0423: cached input price $0.0075 per million tokens. gpt-oss-20b: cached input price $0.0090 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 Flash 0423 or gpt-oss-20b available through an API?

DeepSeek V4 Flash 0423: catalog status active; API identifier deepseek-v4-flash; listed API hosts not listed. gpt-oss-20b: catalog status active; API identifier gpt-oss-20b; 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 Flash 0423 vs gpt-oss-20b

Q: Do DeepSeek V4 Flash 0423 or gpt-oss-20b support tool calling and structured outputs?

DeepSeek V4 Flash 0423: listed features: Function calling, Structured outputs, JSON mode, Reasoning, Log probabilities, Deterministic seed, Prompt caching. gpt-oss-20b: listed features: Function calling, Structured outputs, JSON mode, Reasoning, Log probabilities, Deterministic seed, 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 Flash 0423, gpt-oss-20b by token pricing, context length, benchmark results, speed and tool support.

Highlight best

Monthly workload

Input· million tokensOutput· million tokens

Monthly cost breakdown

InputOutput

DeepSeek V4 Flash 0423

$0.88 / mo

gpt-oss-20b

$0.81 / mo

Performance comparison

DeepSeek V4 Flash 0423

34.3

gpt-oss-20b

Overview

Overview	DeepSeek V4 Flash 0423	gpt-oss-20b
Provider	DeepSeek	OpenAI
Released	2026-04-24	2025-08-05
Status	Active	Active
Input formats	text	text
Output formats	text	text

Provider

DeepSeek V4 Flash 0423: DeepSeek
gpt-oss-20b: OpenAI

Released

DeepSeek V4 Flash 0423: 2026-04-24
gpt-oss-20b: 2025-08-05

Status

DeepSeek V4 Flash 0423: Active
gpt-oss-20b: Active

Input formats

DeepSeek V4 Flash 0423: text
gpt-oss-20b: text

Output formats

DeepSeek V4 Flash 0423: text
gpt-oss-20b: text

Pricing & capacity

Pricing & capacity	DeepSeek V4 Flash 0423	gpt-oss-20b
Input / 1M tokens	$0.03	$0.02
Output / 1M tokens	$0.06	$0.09
Cached input / 1M	$0.0075	$0.0090
Monthly cost	$0.88	$0.81
Context window	1M	131K
Maximum output	944K	33K

Input / 1M tokens

DeepSeek V4 Flash 0423: $0.03
gpt-oss-20b: $0.02

Output / 1M tokens

DeepSeek V4 Flash 0423: $0.06
gpt-oss-20b: $0.09

Cached input / 1M

DeepSeek V4 Flash 0423: $0.0075
gpt-oss-20b: $0.0090

Monthly cost

DeepSeek V4 Flash 0423: $0.88
gpt-oss-20b: $0.81

Context window

DeepSeek V4 Flash 0423: 1M
gpt-oss-20b: 131K

Maximum output

DeepSeek V4 Flash 0423: 944K
gpt-oss-20b: 33K

Benchmarks & performance

Benchmarks & performance	DeepSeek V4 Flash 0423	gpt-oss-20b
Intelligence Index	34.3	9
GPQA	90.8%	68.8%
Humanity’s Last Exam	38.6%	11%
SciCode	50.3%	38.9%
Output speed	215 tokens/s	207 tokens/s
Time to first token	0.95 s	0.85 s
DesignArena rating	1,209	Not listed
DesignArena win rate	48.9%	Not listed

Intelligence Index

DeepSeek V4 Flash 0423: 34.3
gpt-oss-20b: 9

GPQA

DeepSeek V4 Flash 0423: 90.8%
gpt-oss-20b: 68.8%

Humanity’s Last Exam

DeepSeek V4 Flash 0423: 38.6%
gpt-oss-20b: 11%

SciCode

DeepSeek V4 Flash 0423: 50.3%
gpt-oss-20b: 38.9%

Output speed

DeepSeek V4 Flash 0423: 215 tokens/s
gpt-oss-20b: 207 tokens/s

Time to first token

DeepSeek V4 Flash 0423: 0.95 s
gpt-oss-20b: 0.85 s

DesignArena rating

DeepSeek V4 Flash 0423: 1,209
gpt-oss-20b: Not listed

DesignArena win rate

DeepSeek V4 Flash 0423: 48.9%
gpt-oss-20b: Not listed

Tools & features

Tools & features	DeepSeek V4 Flash 0423	gpt-oss-20b
Function calling	Supported	Supported
Structured outputs	Supported	Supported
JSON mode	Supported	Supported
Reasoning	Supported	Supported
Log probabilities	Supported	Supported
Deterministic seed	Supported	Supported
Prompt caching	Supported	Supported

Function calling

DeepSeek V4 Flash 0423: Supported
gpt-oss-20b: Supported

Structured outputs

DeepSeek V4 Flash 0423: Supported
gpt-oss-20b: Supported

JSON mode

DeepSeek V4 Flash 0423: Supported
gpt-oss-20b: Supported

Reasoning

DeepSeek V4 Flash 0423: Supported
gpt-oss-20b: Supported

Log probabilities

DeepSeek V4 Flash 0423: Supported
gpt-oss-20b: Supported

Deterministic seed

DeepSeek V4 Flash 0423: Supported
gpt-oss-20b: Supported

Prompt caching

DeepSeek V4 Flash 0423: Supported
gpt-oss-20b: Supported

API & availability

API & availability	DeepSeek V4 Flash 0423	gpt-oss-20b
API identifier	`deepseek-v4-flash`	`gpt-oss-20b`
Knowledge cutoff	Not listed	2024-06-30
Prices checked	Oct 8, 2026	Oct 8, 2026

API identifier

DeepSeek V4 Flash 0423: deepseek-v4-flash
gpt-oss-20b: gpt-oss-20b

Knowledge cutoff

DeepSeek V4 Flash 0423: Not listed
gpt-oss-20b: 2024-06-30

Prices checked

DeepSeek V4 Flash 0423: Oct 8, 2026
gpt-oss-20b: Oct 8, 2026

About the models