TL;DR

DeepSeek V4 Flash 0731 by DeepSeek costs $0.14 per 1M input tokens and $0.28 per 1M output tokens and carries a context window of 1M tokens — observed 2026-10-23.

DeepSeek V4 Flash 0731

DeepSeek · Open Weight · bench-align-v5

Compare this model Model a workload

Canonical iddeepseek-v4-flash-max

Overall scoreUnavailable

Context window1M tokens

Release date2026-07-31

Access typeOpen Weight

Blended $/1M$0.1875% input / 25% output

Cost per successful task$0.0596LiveBench

Capability shape

Seven axes from the ranking source. A missing axis is drawn as a gap.

Capability evidence

Agentic54.4

Coding55.5

Knowledge66.2

Reasoning60.8

Multimodal & GroundedUnavailable

Instruction FollowingUnavailable

Math87.1

Runtime service evidence

Measured values with the date they were observed. Nothing is inferred from a sibling model or a provider claim.

Time to first token: latency to the first answer chunk (Artificial Analysis, via BenchLM). Reasoning models include thinking time, so values can run to tens or hundreds of seconds.

Evidence key: ObservedUnavailable

Runtime measurements
Measurement	Value	Observed	Last good	Evidence
Time to first token	12.61 s	2026-10-23	2026-10-23
Throughput	174 tok/s	2026-10-23	2026-10-23

Regional or per-endpoint measurements appear only when the API supplies them; none are modelled here.

Endpoint and price matrix

Every published price component, including cache reads and writes.

Price components
Component	USD	Evidence
Input / 1M tokens	$0.14
Output / 1M tokens	$0.28
Cache read / 1M tokens	$0.0028
Cache write / 1M tokens	Unavailable
Blended / 1M (75% input / 25% output)	$0.18
Cost per successful task (LiveBench)	$0.0596

Self-hosted listingHistorical. DeepSeek V4 Flash 0731 used the shared `deepseek-v4-flash` API ID at $0.14 cache-miss input / $0.0028 cache-hit input / $0.28 output per million tokens; BenchLM represents the model at its highest published reasoning effort. DeepSeek retired the V4 Flash SKU on September 10, 2026 when it launched DeepSeek-V4.1-Flash as `deepseek-flash`; the legacy `deepseek-v4-flash` ID is still accepted but temporarily routes to V4.1 Flash and bills at the V4.1 Flash rate. The rates stored here are historical: the last standalone V4 Flash figures BenchLM recorded from the pricing page checked August 12, 2026, before DeepSeek's peak/off-peak schedule took effect at 16:00 UTC on August 16, 2026.The rates above are a hosted price matched from another provider, not a first-party list price.

Workload-aware monthly cost example

10 conversations per day × 8 messages × 22 active days, 1200 input and 400 output tokens per message, no cache. This uses the same calculator as the cost simulator, so an unavailable applicable rate makes the example unavailable too.

Modelled monthly cost$0.49

Modelled tokens2.82M

Open the simulatorChange this workload

Benchmark record

57 matched benchmark rows with their published value, unit, and provenance.

Knowledge

Knowledge benchmarks
Benchmark	Value	Tasks	Difficulty	Provenance
GPQA Graduate-Level Google-Proof Q&A	88.1	448 questions	Graduate level	GPQA: A Graduate-Level Google-Proof Q&A Benchmark
GPQA-D GPQA Diamond	88.1	Graduate-level science questions	Graduate level	GPQA: A Graduate-Level Google-Proof Q&A Benchmark
MMLU-Pro Massive Multitask Language Understanding Professional	86.2	Multiple subjects	Professional level	MMLU-Pro: A More Robust and Challenging Multi-Task Language Understanding Benchmark
HLE Humanity's Last Exam	34.8

Lifecycle and limitations log

Lifecycle events the source associates with this model, plus what this profile does not claim.

No lifecycle event references this model.

That is not evidence the model has no lifecycle plan — only that this source published none.

What this profile does not claimValues are reproduced exactly as their sources published them, in the units those sources declared; none are converted, interpolated, or averaged across providers. Any field marked unavailable was attempted and not returned — the attempt timestamp is in each badge. Last attempted fetch for this model’s score: 2026-10-23 13:17 UTC.

Benchmark

Value

Tasks

Difficulty

Provenance

Terminal-Bench 2.1

Terminal-Bench 2.1

82.7

Terminal-based software-agent tasks

Professional software engineering

Terminal-Bench

Codeforces

Codeforces Rating

3052.0

Competitive programming contests

Elite competitive programming

DeepSeek-V4 Technical Report

Terminal-Bench 2.0

Terminal-Bench 2.0

56.9

Terminal-based software tasks

Professional software engineering

Terminal-Bench 2.0

SWE-bench Verified

Software Engineering Benchmark Verified

500 verified issues

Professional software engineering

SWE-bench: Can Language Models Resolve Real-World GitHub Issues?

LiveCodeBench Pass@1-COT

LiveCodeBench Pass@1 with Chain-of-Thought

91.6

DeepSeek-V4 report evaluation window

Competitive programming level

DeepSeek-V4 technical report

SWE-bench Pro

SWE-bench Pro

52.6

1,865 repository problems

Long-horizon professional engineering

SWE-Bench Pro: Can AI Agents Solve Long-Horizon Software Engineering Tasks?

VulcanBench v3

VulcanBench v3

88.4

23 post-cutoff repository tasks in the v3 report

Professional multi-file software engineering

VulcanBench

OpenHarmony Bench

OpenHarmony Bench v1.0

53.8

153 app-development and bug-fix tasks

End-to-end OpenHarmony application development

OpenHarmony Bench: Evaluating LLMs and Coding Agents on OpenHarmony App Development

SWE Multilingual

SWE Multilingual

73.3

Multilingual software-engineering tasks

Professional software engineering

MiniMax M2.7: Early Echoes of Self-Evolution

NL2Repo

NL2Repo

54.2

Natural language to repository tasks

System-level software comprehension

MiniMax M2.7: Early Echoes of Self-Evolution

DSBench-FullStack

DeepSeek DSBench FullStack

68.7

Internal full-stack coding-agent tasks

Full-stack software engineering

DeepSeek V4 Flash 0731 update

DSBench-Hard

DeepSeek DSBench Hard

59.6

Internal hard coding-agent tasks

Advanced coding-agent challenges

DeepSeek V4 Flash 0731 update

AA Coding Index

Artificial Analysis Coding Index

69.1

Cross-benchmark coding index

Display-only external reference

Artificial Analysis model leaderboards

AA-SciCode

Artificial Analysis SciCode

50.3

Scientific coding subproblems

Scientific programming

Artificial Analysis SciCode Benchmark Leaderboard

LiveCodeBench (Vals)

LiveCodeBench, Vals AI run

87.3

Competitive programming problems (easy, medium, hard)

Frontier coding

Vals AI LiveCodeBench, Vals AI run leaderboard

SWE-bench (Vals)

SWE-bench, Vals AI run

88.8

Real repository issues by human time bucket

Frontier coding agents

Vals AI SWE-bench, Vals AI run leaderboard

DeepSWE

DeepSWE

54.4

113 software engineering tasks across 91 repositories and 5 languages

Long-horizon software engineering

DeepSWE benchmark blog

Benchmark	Value	Tasks	Difficulty	Provenance
HMMT Feb 2026 Harvard-MIT Mathematics Tournament February 2026	94.8	Competition math problems	Olympiad-style mathematics	Qwen3.6 launch benchmarks
IMOAnswerBench IMOAnswerBench	88.4	Advanced mathematical answer generation	Olympiad-level mathematics	DeepSeek-V4 Technical Report
Apex Apex	33.0	Advanced mathematical reasoning	Frontier math reasoning	DeepSeek-V4 Technical Report
Apex Shortlist Apex Shortlist	85.7	Advanced mathematical reasoning	Frontier math reasoning	DeepSeek-V4 Technical Report

Benchmark	Value	Tasks	Difficulty	Provenance
ARC-AGI-1 ARC-AGI-1 Semi-Private Evaluation	89.00	Semi-private ARC-AGI-1 evaluation set	Abstract visual reasoning	ARC Prize leaderboard
MRCR 1M MRCR 1M	78.7	Million-token retrieval	Million-token long context	DeepSeek-V4 Technical Report
CorpusQA 1M CorpusQA 1M	60.5	Million-token corpus question answering	Million-token long context	DeepSeek-V4 Technical Report
ARC-AGI-2 Abstraction and Reasoning Corpus for AGI v2	61.388889	Visual pattern completion and abstract reasoning	Expert-level — hardest public reasoning benchmark	ARC-AGI-2: A Harder General Intelligence Benchmark
AA-LCR Artificial Analysis Long Context Reasoning	79.7	Long-context reasoning tasks	Long-context reasoning	Artificial Analysis model benchmarks
CritPt Critical Physics Tasks	16.6	Research-level physics questions	Research-level physics reasoning	CritPt Benchmark Leaderboard

Benchmark	Value	Tasks	Difficulty	Provenance
Terminal-Bench 2.0 Terminal-Bench 2.0	56.9	Terminal-based software tasks	Professional software engineering	Terminal-Bench 2.0
Terminal-Bench 2.1 Terminal-Bench 2.1	82.7	Terminal-based software-agent tasks	Professional software engineering	Terminal-Bench
BrowseComp BrowseComp	73.2	Research questions requiring browsing	Hard web research	BrowseComp
HLE w/ tools Humanity's Last Exam with tools	45.1	Expert questions with tool use	Frontier tool-augmented reasoning	DeepSeek-V4 Technical Report
GDPval-AA GDPval-AA	1189	Agentic real-world work tasks	Professional agentic workflows	DeepSeek-V4 Technical Report
GDPval-AA GDPval-AA normalized	46.7	Economically valuable tasks	Professional agentic workflows	Artificial Analysis model benchmarks
AA Agentic Index Artificial Analysis Agentic Index	41.7	Cross-benchmark agentic index	Display-only external reference	Artificial Analysis model leaderboards
CyberGym CyberGym	76.7	1,507 vulnerability analysis instances	Real-world cybersecurity	CyberGym: Evaluating AI Agents' Real-World Cybersecurity Capabilities at Scale
MCP Atlas MCP Atlas	69	Tool-integrated agent tasks	Advanced tool use	Introducing GPT-5.4 mini and nano
Toolathlon Toolathlon	47.8	Multi-tool workflows	Advanced tool use	Introducing GPT-5.4 mini and nano
Toolathlon-Verified Toolathlon-Verified	70.3	Verified multi-tool workflows	Advanced tool use	Kimi K3: Open Frontier Intelligence
AutomationBench AutomationBench	25.1	600 public automation tasks	Long-horizon automation	Kimi K3: Open Frontier Intelligence
Agents' Last Exam Agents' Last Exam	25.2	Agent tasks	Advanced agentic work	DeepSeek V4 Flash 0731 update
Terminal-Bench 2.1 (Vals) Terminal-Bench 2.1, Vals AI run	67.0	Difficult terminal tasks	Frontier agentic	Vals AI Terminal-Bench 2.1, Vals AI run leaderboard
MazeBench MazeBench: visual spatial reasoning in a 3D open world	0	100 hidden gems across 256 rooms in one open world	Long-horizon spatial planning, with single puzzles that can take over one hundred moves	MazeBench Results

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DeepSeek V4 Flash 0731

Capability shape

Capability evidence

Runtime service evidence

Endpoint and price matrix

Workload-aware monthly cost example

Benchmark record

Knowledge

Lifecycle and limitations log

Coding

Mathematics

Reasoning

Agentic

Multimodal & Grounded