Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

DeepSeek V4 Flash vs OpenAI: GPT-4 benchmark

Name: DeepSeek V4 Flash vs OpenAI: GPT-4 AI benchmark comparison
Creator: CompareLLM
License: https://creativecommons.org/licenses/by/4.0/

This page compares DeepSeek V4 Flash (DeepSeek) and OpenAI: GPT-4 (OpenAI) using the latest snapshots we have as of Aug 17, 2026. DeepSeek V4 Flash wins on output price at $0.28/1M. DeepSeek V4 Flash has the larger context window (1.3M tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.

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DeepSeek

DeepSeek V4 Flash

DeepSeek Jul 31 2026 price-performance SKU. Public listings put it near $0.14/$0.28 per 1M tokens.

V4 Flash SpeedElo 1,490$0.28/1M out

OpenAI

OpenAI: GPT-4

Auto-discovered from OpenRouter (openai/gpt-4). Preview until a second source matches.

$60/1M out

Model Lineage & Multi-Tier Derivatives🇨🇳 CN Frontier

DeepSeek V4 Series Family (2 models)

Compare vs Base (DeepSeek V4 Pro)

DeepSeek V4 Pro

DeepSeek

Flagship Base

CoT ScalerFast Route

Elo

1536

Speed

70 tok/s

Price

$3.96 / 1M

View model →vs this

DeepSeek V4 Flash

DeepSeek

V4 Flash Speed

Fast Route

Elo

1490

Speed

142 tok/s

Price

$0.28 / 1M

-46 Elo-93% cost2.0x speed

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Model A

Model B

Quick vs:vs Claude Opus 4.5 vs Claude Opus 4.6 vs Claude Sonnet 4.5 vs Claude 3.7 Sonnet

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

DeepSeek V4 Flash (10)vsOpenAI: GPT-4 (0)

DeepSeek V4 Flash: 10W (100%)Overall: DeepSeek V4 FlashOpenAI: GPT-4: 0W (0%)

← DeepSeek V4 FlashOpenAI: GPT-4 →

DeepSeek V4 Flash (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,490vs—

Coding Elo

1,516vs—

SWE-bench

71.2%vs—

LiveBench

67.8%vs—

GPQA Diamond

81.6%vs—

DeepSeek V4 Flash: 5WOpenAI: GPT-4: 0W

DeepSeek V4 Flash (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

142 tok/svs—

Time to first token

165 msvs—

DeepSeek V4 Flash: 2WOpenAI: GPT-4: 0W

DeepSeek V4 Flash (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$0.28/1Mvs$60/1M

Input price

$0.14/1Mvs$30/1M

Context window

1.3Mvs8k

DeepSeek V4 Flash: 3WOpenAI: GPT-4: 0W

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect

Percentile 0–100

Dimensional AdvantageDeepSeek V4 Flash 6/6

Preference Elo

No shared data

Throughput Speed

No shared data

Token Price Efficiency

DeepSeek V4 Flash

$59.72/1M cheaper

Full Benchmark Score Matrix

—

Elo

High is better

1,490

EloHigh is better

—

Code Elo

High is better

1,516

Code EloHigh is better

—

LiveBench

High is better

67.8%

LiveBenchHigh is better

—

SWE-bench

High is better

71.2%

SWE-benchHigh is better

—

GPQA

High is better

81.6%

GPQAHigh is better

—

TTFT

Low is better

165 ms

TTFTLow is better

—

Speed

High is better

142 tok/s

SpeedHigh is better

—

In $

Low is better

+21329%$0.14 / 1M

In $Low is better

$30.00 / 1M

Out $

Low is better

+21329%$0.28 / 1M

Out $Low is better

$60.00 / 1M

Context

High is better

+15902%1.3M

ContextHigh is better

Interactive Simulator (USD)

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save up to 100% with DeepSeek V4 Flash

Monthly Volume50M tokens/mo

Quick Presets:

Token Ratio (In vs Out)70% In / 30% Out

RAG / Search (10% out)Coding / Chat (50% out)

DeepSeek V4 Flash$9.10 / mo

In: $4.9Out: $4.2

OpenAI: GPT-4$1,950.00 / mo

In: $1,050Out: $900

Estimated Cost Delta

DeepSeek V4 Flash is estimated to save $1,940.90/month ($23,291/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

1
DeepSeek V4 Flash:Pick DeepSeek V4 Flash when you are optimizing output cost.
2
DeepSeek V4 Flash:Pick DeepSeek V4 Flash for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatDeepSeek V4 Flash

Lower output list price ($0.28/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGDeepSeek V4 Flash

Larger window (1.3M).

Screenshots / visionOpenAI: GPT-4

OpenAI: GPT-4 is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	DeepSeek V4 Flash	Lower output list price ($0.28/1M).
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	DeepSeek V4 Flash	Larger window (1.3M).
Screenshots / vision	OpenAI: GPT-4	OpenAI: GPT-4 is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news

priceJul 31, 2026

DeepSeek V4 Flash (Jul 31): the $0.14/$0.28 price-performance SKU

Public listings put Flash near $0.14/$0.28 per 1M. That is a batch SKU, not a chatbot crown.

Community Sentiment

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Community Discussions (0)

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CompareLLM Matrix

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LIVE

DeepSeek

DeepSeek V4 Flash

Elo 1,490

LiveBench67.8%

SWE-bench71.2%

Speed142 tok/s

Output cost$0.28/1M

OpenAI

OpenAI: GPT-4

Elo n/a

LiveBench—

SWE-bench—

Speed—

Output cost$60/1M

Frequently Asked Questions

Which is better overall, DeepSeek V4 Flash or OpenAI: GPT-4?: We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, DeepSeek V4 Flash or OpenAI: GPT-4?: SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?: DeepSeek V4 Flash output tokens are $0.28/1M versus $60/1M. Input prices and retry rates still move the real bill.
Which is faster, DeepSeek V4 Flash or OpenAI: GPT-4?: We do not have TTFT for both models.
Which has the larger context window?: DeepSeek V4 Flash accepts 1.3M tokens versus 8k.
Can I self-host either model?: DeepSeek V4 Flash is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.
Are these scores from CompareLLM’s own evals?: No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?: Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. DeepSeek V4 Flash and OpenAI: GPT-4 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All DeepSeek V4 Flash matchups →|All OpenAI: GPT-4 matchups →

DeepSeek V4 Flash vs DeepSeek V4 Pro (previous deepseek)GPT-4.5 Orion vs DeepSeek V4 Flash GPT-5.6 Terra vs DeepSeek V4 Flash GPT-5 vs DeepSeek V4 Flash GPT-5.6 Sol vs DeepSeek V4 Flash OpenAI: o1 vs DeepSeek V4 Flash

DeepSeek V4 Flash vs OpenAI: GPT-4 benchmark

Interactive Comparison Diagram

Matchup Breakdown

Tug-of-War Matchup Matrix

Category wins across intelligence, speed, and pricing efficiency.

DeepSeek V4 Flash (10)vsOpenAI: GPT-4 (0)

DeepSeek V4 Flash: 10W (100%)Overall: DeepSeek V4 FlashOpenAI: GPT-4: 0W (0%)

← DeepSeek V4 FlashOpenAI: GPT-4 →

DeepSeek V4 Flash (5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Preference Elo

1,490vs—

Coding Elo

1,516vs—

SWE-bench

71.2%vs—

LiveBench

67.8%vs—

GPQA Diamond

81.6%vs—

DeepSeek V4 Flash: 5WOpenAI: GPT-4: 0W

DeepSeek V4 Flash (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed

142 tok/svs—

Time to first token

165 msvs—

DeepSeek V4 Flash: 2WOpenAI: GPT-4: 0W

DeepSeek V4 Flash (3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price

$0.28/1Mvs$60/1M

Input price

$0.14/1Mvs$30/1M

Context window

1.3Mvs8k

DeepSeek V4 Flash: 3WOpenAI: GPT-4: 0W

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatDeepSeek V4 Flash

Lower output list price ($0.28/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGDeepSeek V4 Flash

Larger window (1.3M).

Screenshots / visionOpenAI: GPT-4

OpenAI: GPT-4 is the side marked multimodal in the catalog.

Target Workload	Recommended Pick	Evaluation Rationale
Repo / coding agents	insufficient data	Need SWE-bench on both sides.
High-volume chat	DeepSeek V4 Flash	Lower output list price ($0.28/1M).
Voice / low-latency UI	insufficient data	Need TTFT on both sides.
Long-document RAG	DeepSeek V4 Flash	Larger window (1.3M).
Screenshots / vision	OpenAI: GPT-4	OpenAI: GPT-4 is the side marked multimodal in the catalog.

Frequently Asked Questions

Which is better overall, DeepSeek V4 Flash or OpenAI: GPT-4?

We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.

Which is better at coding, DeepSeek V4 Flash or OpenAI: GPT-4?

SWE-bench is missing for at least one model, so we do not rank coding from a single number.

Which is cheaper to run in production?

DeepSeek V4 Flash output tokens are $0.28/1M versus $60/1M. Input prices and retry rates still move the real bill.

Which is faster, DeepSeek V4 Flash or OpenAI: GPT-4?

We do not have TTFT for both models.

Which has the larger context window?

DeepSeek V4 Flash accepts 1.3M tokens versus 8k.

Can I self-host either model?

DeepSeek V4 Flash is marked open-weights in our catalog. The other side is a closed API. Check the provider license before you ship weights.

Are these scores from CompareLLM’s own evals?

No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.

What does preference Elo mean on this page?

Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. DeepSeek V4 Flash and OpenAI: GPT-4 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

DeepSeek V4 Series Family (2 models)

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

No shared data

No shared data

DeepSeek V4 Flash

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

DeepSeek V4 Flash (Jul 31): the $0.14/$0.28 price-performance SKU

Cast Your Matchup Vote

Community Discussions (0)

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CompareLLM Matrix

DeepSeek V4 Flash

OpenAI: GPT-4

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons

DeepSeek V4 Series Family (2 models)

Swap or Add Any Model to this Matchup

Interactive Comparison Diagram

Tug-of-War Matchup Matrix

Intelligence & Reasoning

Speed & Latency

Pricing & Capacity

Multi-Dimensional Capability Radar

No shared data

No shared data

DeepSeek V4 Flash

Full Benchmark Score Matrix

Workload Cost & Savings Calculator

Key Selection Recommendations

Recommended Workload Routing

Related Editorial Dispatches & Benchmark Notes

DeepSeek V4 Flash (Jul 31): the $0.14/$0.28 price-performance SKU

Cast Your Matchup Vote

Community Discussions (0)

Share card

CompareLLM Matrix

DeepSeek V4 Flash

OpenAI: GPT-4

Frequently Asked Questions

Related news

Similar Head-to-Head Comparisons