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DeepSeek V4.1 Flash 1017 vs GPT-6.1 Sol

Updated November 13, 2026. Rank says GPT-6.1 Sol is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.

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Decision reading

GPT-6.1 Sol has the higher public score, 84.63 versus 64.51, and the 90% score intervals do not overlap. 13 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.

Model A
DeepSeek logo

DeepSeek

64.51/100

Supported · Public rank #31

90% interval 59.1–70.0

Model B
OpenAI logo

OpenAI

84.63/100

Supported · Public rank #5

90% interval 80.4–88.9

API price per 1M tokens

DeepSeek V4.1 Flash 1017: $0.30 input / $1.20 output

GPT-6.1 Sol: $2 input / $10 output

Context window

DeepSeek V4.1 Flash 1017: 1M

GPT-6.1 Sol: 1.05M

Released

DeepSeek V4.1 Flash 1017: October 17, 2026

GPT-6.1 Sol: September 29, 2026

Shared results
13
DeepSeek V4.1 Flash 1017 only
26
GPT-6.1 Sol only
16
Like-for-like categories
4 / 8
Supported: DeepSeek V4.1 Flash 1017 and GPT-6.1 SolHow the comparison works

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

  • Coding work

    Code generation, repair, and software-engineering tasks

    GPT-6.1 Sol

    GPT-6.1 Sol has the higher public coding point estimate, 73.4 to 59.7, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

    Confidence: limited
  • Agentic work

    Tool use, computer use, and multi-step task completion

    GPT-6.1 Sol

    GPT-6.1 Sol has the higher public agentic point estimate, 65.7 to 61.1, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

    Confidence: limited
  • Long documents

    Prompts that approach the documented context limit

    GPT-6.1 Sol

    GPT-6.1 Sol has the larger documented context window.

    Confidence: documented
Show secondary and unsupported calls
  • Chat turn cost

    1K fresh input + 500 output tokens

    DeepSeek V4.1 Flash 1017

    DeepSeek V4.1 Flash 1017 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    DeepSeek V4.1 Flash 1017

    DeepSeek V4.1 Flash 1017 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates
  • Repository review cost

    50K fresh input + 3K output tokens

    DeepSeek V4.1 Flash 1017

    DeepSeek V4.1 Flash 1017 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates

Which one for a specific job

Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.

The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.

59.7DeepSeek V4.1 Flash 101773.4GPT-6.1 Sol

Like-for-like · BenchAlign v5.8

GPT-6.1 Sol has the higher coding point estimate. Conditional score ranges do not establish rank confidence.

Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.

Same basis rules as the category table below

Or describe your own job

The LLM Selector reads what you need a model for and returns a shortlist, ranked in the same order the job pages publish.

Describe the task and constraints. This selector recommends models; it cannot carry out the task or access your files and accounts.

We keep what you type here, drafts included, for 180 days, and after that only the job and requirements read from it. Nothing is tied to your IP address or account. Leave out names and other personal details. Privacy

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

1 category rests on Estimated evidence or different evidence sets. Those rows remain visible for coverage context but do not name a winner.

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.

Bars run 0–100 on each benchmark’s normalized display scale

Category results, on a stated basis

Each row shows the public-lane category score for both models: the BenchAlign v5.8 lane for agentic, coding, reasoning, multimodal, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.

Agentic

Like-for-like
DeepSeek V4.1 Flash 1017
61.1
Supported · #25/135
GPT-6.1 Sol
65.7
Supported · #17/135
Basis
BenchAlign v5.8 lane · 12 vs 7 public rows
Reading
GPT-6.1 Sol leads · intervals overlap

Coding

Like-for-like
DeepSeek V4.1 Flash 1017
59.7
Supported · #18/162
GPT-6.1 Sol
73.4
Supported · #8/162
Basis
BenchAlign v5.8 lane · 13 vs 6 public rows
Reading
GPT-6.1 Sol leads

Multimodal

Like-for-like
DeepSeek V4.1 Flash 1017
64.7
Supported · #21/67
GPT-6.1 Sol
78.9
Supported · #4/67
Basis
BenchAlign v5.8 lane · 5 vs 3 public rows
Reading
GPT-6.1 Sol leads · intervals overlap

Knowledge

Like-for-like
DeepSeek V4.1 Flash 1017
65.1
Supported · #29/180
GPT-6.1 Sol
85.6
Supported · #3/180
Basis
BenchAlign v5.8 lane · 3 vs 5 public rows
Reading
GPT-6.1 Sol leads

Reasoning

Directional only
DeepSeek V4.1 Flash 1017
59.5
Estimated · #35/160
GPT-6.1 Sol
80.4
Supported · #5/160
Basis
BenchAlign v5.8 lane · 3 vs 6 public rows
Reading
Directional only

Multilingual

Not comparable
DeepSeek V4.1 Flash 1017
Not ranked
GPT-6.1 Sol
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Instruction following

Not comparable
DeepSeek V4.1 Flash 1017
Not ranked
GPT-6.1 Sol
Not ranked
Basis
Provisional lane · 0 vs 0 weighted rows
Reading
Not comparable

Math

Not comparable
DeepSeek V4.1 Flash 1017
65.6
Unranked · 3 rankable rows
GPT-6.1 Sol
93.8
Unranked · 2 rankable rows
Basis
Provisional lane · 2 vs 2 weighted rows
Reading
Not comparable

Ranks count the models scored in each category’s lane, so the agentic, coding, reasoning, multimodal, and knowledge denominators (BenchAlign v5.8) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.

Supported evidence per lane · bars run 0–100Methodology

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

DeepSeek V4.1 Flash 1017
$0.0009
Fits in one request
GPT-6.1 Sol
$0.007
Fits in one request

DeepSeek V4.1 Flash 1017 has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

DeepSeek V4.1 Flash 1017
$0.0186
Fits in one request
GPT-6.1 Sol
$0.13
Fits in one request

DeepSeek V4.1 Flash 1017 has the lower modeled cost

Costs use the listed standard API rates.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

DeepSeek V4.1 Flash 1017
$0.0192
Fits in one request
GPT-6.1 Sol
$0.16
Fits in one request

DeepSeek V4.1 Flash 1017 has the lower modeled cost

Costs use the listed standard API rates.

Your workload

Enter a month of tokens to price it at both models’ listed API rates.

DeepSeek V4.1 Flash 1017
$5.40
per month
GPT-6.1 Sol
$40.00
per month

Standard listed rates, no batch or volume discounts.

Cached input falls back to the list input rate only where a cached rate is unpublished

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

Reasoning profile

DeepSeek V4.1 Flash 1017

Reasoning

GPT-6.1 Sol

Reasoning

Weight access

DeepSeek V4.1 Flash 1017

Open Weight

GPT-6.1 Sol

Proprietary

License

DeepSeek V4.1 Flash 1017

Open Weight

GPT-6.1 Sol

Proprietary

Release date

DeepSeek V4.1 Flash 1017

2026-10-17

GPT-6.1 Sol

2026-09-29

If you already use one of these models

Deployment change
The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
Quality signal
GPT-6.1 Sol has the higher public score, 84.63 versus 64.51, and the 90% score intervals do not overlap.
Workload cost
Repository review: $0.0186 vs $0.13. Cache-heavy agent loop: $0.0192 vs $0.16.
Context tradeoff
GPT-6.1 Sol has the larger documented window (1.05M).
Run the same representative tasks against both endpoints before changing production traffic.

Questions

Which is better, DeepSeek V4.1 Flash 1017 or GPT-6.1 Sol?

GPT-6.1 Sol has the higher public score, 84.63 versus 64.51, and the 90% score intervals do not overlap. That is the clearest overall quality signal in the current public data.

Which is better for coding, DeepSeek V4.1 Flash 1017 or GPT-6.1 Sol?

GPT-6.1 Sol has the higher public coding point estimate, 73.4 to 59.7, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which is better for agentic tasks, DeepSeek V4.1 Flash 1017 or GPT-6.1 Sol?

GPT-6.1 Sol has the higher public agentic tasks point estimate, 65.7 to 61.1, with Supported evidence for both models. The conditional ranges do not establish rank confidence.

Which costs less, DeepSeek V4.1 Flash 1017 or GPT-6.1 Sol?

For the stated presets, chat costs $0.0009 on DeepSeek V4.1 Flash 1017 and $0.007 on GPT-6.1 Sol; repository review costs $0.0186 and $0.13; the cache-heavy agent loop costs $0.0192 and $0.16. Costs use the listed standard API rates.

Which has the larger context window, DeepSeek V4.1 Flash 1017 or GPT-6.1 Sol?

GPT-6.1 Sol has the larger documented context window: 1.05M, compared with 1M.

Self-host vs API cost

Estimates at 50,000 req/day · 1000 tokens/req average.

DeepSeek V4.1 Flash 1017
API / mo$1,125
Self-host / mo$27,962
Break-evenNot reached at 70% load
GPT-6.1 Sol
API / mo$9,000
Self-host / moNot listed
Break-even—
Proprietary model — self-hosting not applicable.
Model the full break-even

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence55 rows

Agentic

  • Terminal-Bench 2.1

    DeepSeek V4.1 Flash 101790.6%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • terminalBench3

    DeepSeek V4.1 Flash 101730%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • Terminal-Bench 4.0

    DeepSeek V4.1 Flash 101742.30%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • CyberGym

    DeepSeek V4.1 Flash 101788.1%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • ExploitGym

    DeepSeek V4.1 Flash 101715.3%
    Source
    GPT-6.1 Sol35.1%
    Source

    GPT-6.1 Sol leads this result

  • HLE w/ tools

    DeepSeek V4.1 Flash 101763.9%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • AutomationBench

    DeepSeek V4.1 Flash 101760.5%
    Source
    GPT-6.1 Sol36.1%
    Source

    DeepSeek V4.1 Flash 1017 leads this result

  • Agents' Last Exam

    DeepSeek V4.1 Flash 101735.4%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • Terminal-Bench 2.1 (Vals)

    DeepSeek V4.1 Flash 101774.5%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • CWE-bench v1

    DeepSeek V4.1 Flash 101755.0%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • MazeBench

    DeepSeek V4.1 Flash 10171%
    Source
    GPT-6.1 Sol17%
    Source

    GPT-6.1 Sol leads this result

  • CWE-bench

    DeepSeek V4.1 Flash 101757.6%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • Terminal-Bench 4.1

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol60.90%
    Source

    Not directly comparable

  • Terminal-Bench-Science 0.1

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol57.0%
    Source

    Not directly comparable

  • Hermes Index

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol57.1%
    Source

    Not directly comparable

  • Hermes Bench

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol73.9%
    Source

    Not directly comparable

Coding

  • ScarfBench

    Shared source
    DeepSeek V4.1 Flash 101769.0%
    GPT-6.1 Sol68.4%

    DeepSeek V4.1 Flash 1017 leads this result

  • Codeforces

    DeepSeek V4.1 Flash 10173471.0
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • Terminal-Bench 2.1

    DeepSeek V4.1 Flash 101790.6%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • terminalBench3

    DeepSeek V4.1 Flash 101730%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • DeepSWE

    DeepSeek V4.1 Flash 101777.0%
    Source
    GPT-6.1 Sol71.9%
    Source

    DeepSeek V4.1 Flash 1017 leads this result

  • ProgramBench

    DeepSeek V4.1 Flash 101729.1%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • NL2Repo

    DeepSeek V4.1 Flash 101768.2%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • OpenHarmony Bench v1.0

    DeepSeek V4.1 Flash 101760.3%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • Bug Hunt Bench

    Shared source
    DeepSeek V4.1 Flash 101739.1 fixes
    GPT-6.1 Sol44.3 fixes

    GPT-6.1 Sol leads this result

  • FrontierCode 2.0

    Shared source
    DeepSeek V4.1 Flash 101719.3%
    GPT-6.1 Sol39.0%

    GPT-6.1 Sol leads this result

  • CursorBench 4.0

    DeepSeek V4.1 Flash 101747.7%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • VulcanBench Frontier v4

    Shared source
    DeepSeek V4.1 Flash 101788.7%
    GPT-6.1 Sol88.8%

    GPT-6.1 Sol leads this result

  • OpenHarmony Bench v1.2

    DeepSeek V4.1 Flash 101771.28%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • PostTrainBench

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol38.8%
    Source

    Not directly comparable

Reasoning

  • DeepSeek V4.1 Flash 10172.54
    GPT-6.1 Sol2.76

    GPT-6.1 Sol leads this result

  • JevBench 1.4

    DeepSeek V4.1 Flash 10174.77
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • JevBench 1.5

    DeepSeek V4.1 Flash 10176.65
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • BioBasicsBench

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol62.6%
    Source

    Not directly comparable

  • ARC-AGI-1

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol96.50%
    Source

    Not directly comparable

  • ARC-AGI-2

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol94.2%
    Source

    Not directly comparable

  • ARC-AGI-3

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol52.7%
    Source

    Not directly comparable

  • ARC-AGI-3 Provider Adapter

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol96.18%
    Source

    Not directly comparable

Multimodal

  • ExtractBench (LlamaIndex)

    Shared source
    DeepSeek V4.1 Flash 101787.11%
    GPT-6.1 Sol95.31%

    GPT-6.1 Sol leads this result

  • ParseBench

    Shared source
    DeepSeek V4.1 Flash 101764.38%
    GPT-6.1 Sol69.63%

    GPT-6.1 Sol leads this result

  • Chartography (tools)

    DeepSeek V4.1 Flash 101783.0%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • BabyVision w/ Python

    DeepSeek V4.1 Flash 101792.5%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • ZeroBench w/ Python

    DeepSeek V4.1 Flash 101751.0%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • ExtractBench Pro

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol12%
    Source

    Not directly comparable

Knowledge

  • GPQA

    DeepSeek V4.1 Flash 101790.9%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • GPQA-D

    DeepSeek V4.1 Flash 101790.9%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • HLE

    DeepSeek V4.1 Flash 101742.6%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • HealthBench (raw)

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol56.7%
    Source

    Not directly comparable

  • HealthBench (length-adjusted)

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol58.5%
    Source

    Not directly comparable

  • HealthBench Professional

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol64.2%
    Source

    Not directly comparable

  • HealthBench Professional (raw)

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol67.2%
    Source

    Not directly comparable

  • HealthBench Hard

    DeepSeek V4.1 Flash 1017—
    GPT-6.1 Sol36.2%
    Source

    Not directly comparable

Math

  • Apex

    DeepSeek V4.1 Flash 101765.6%
    Source
    GPT-6.1 Sol—

    Not directly comparable

  • FrontierMath v2 (Tiers 1-3)

    Shared source
    DeepSeek V4.1 Flash 101767.368%
    GPT-6.1 Sol93.684%

    GPT-6.1 Sol leads this result

  • FrontierMath v2 (Tier 4)

    Shared source
    DeepSeek V4.1 Flash 101726.829%
    GPT-6.1 Sol100.000%

    GPT-6.1 Sol leads this result

55 public results · 13 shared

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Last updated November 13, 2026