GPT-6.1 Sol
Not tested yet
Head-to-head comparison
GPT-6.1 Sol vs. DeepSeek-V4.1-Flash
Compare published benchmark results from matching versions and cohorts, API pricing, and technical specifications. Any documented test setup differences remain visible.
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- distinct benchmarks
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- latest retrieval
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Specifications
General specifications
Release date, availability, context window, architecture, and published parameter counts at a glance. Undisclosed details remain marked as unavailable.
| Attribute | GPT-6.1 Sol | DeepSeek-V4.1-Flash |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Released | Sep 29, 2026 | Sep 10, 2026 |
| Availability | Active | Active |
| Model type | Proprietary | Open Weights |
| Parameters | Not published | 552B |
| Architecture | Not published | Mixture of Experts |
| Context window | 1,050,000 tokens | 1,000,000 tokens |
| Knowledge cutoff | April 30, 2026 | Not published |
| Technical sources | Model, Context | Model |
Pricing
API pricing compared
The table compares official standard API rates per 1M tokens, including published cache pricing. Batch, fast, priority, regional surcharges, tool calls, and cloud platform pricing are excluded.
| Price type | GPT-6.1 Sol | DeepSeek-V4.1-Flash |
|---|---|---|
| API input | $2 ≤272K / $4 >272K | $0.15 (Off-Peak) |
| API output | $10 ≤272K / $15 >272K | $0.6 (Off-Peak) |
| Cache read | $0.1 ≤272K / $0.2 >272K | $0. (Off-Peak) |
| Cache write (5 min.) | $2.5 ≤272K / $5 >272K | Not listed |
| Cache write (1 hr.) | Not listed | Not listed |
| Price verified | 09/29/2026 Source | 09/23/2026 Source |
| DeepSeek-V4.1-Flash: peak pricing is $0.3 input / $1.2 output per 1M tokens during Mon, Tue, Wed, Thu, Fri, 01:00-04:00 UTC; Mon, Tue, Wed, Thu, Fri, 06:00-10:00 UTC; off-peak rates apply at all other times. | ||
GPT-6.1 SolDeepSeek-V4.1-Flash
API inputUSD per 1M tokens, base tier
GPT-6.1 Sol$2
DeepSeek-V4.1-FlashLower price$0.15
API outputUSD per 1M tokens, base tier
GPT-6.1 Sol$10
DeepSeek-V4.1-FlashLower price$0.6
Cache readUSD per 1M tokens, base tier
GPT-6.1 Sol$0.1
DeepSeek-V4.1-FlashLower price$0.003
Key to the marks:better valuebetter, but not conclusivetie
Pricing by provider
Direct developer pricing and provider endpoint tariffs routed through OpenRouter are listed separately. Prices are in USD per 1M tokens. Context-dependent direct tiers plus regional, Flex, Priority, and other OpenRouter tariffs remain individually identifiable.
No provider tariff for GPT-6.1 Sol is available in the stored OpenRouter snapshot. The official direct price is still shown.
| Model | Provider | Purchase route and tariff | Input per 1M tokens | Output per 1M tokens | Source |
|---|---|---|---|---|---|
| GPT-6.1 Sol | OpenAI | Direct from developerUp to 272,000 context tokens | Lowest listed price: $2 | Lowest listed price: $10 | Source09/29/2026 |
| OpenAI | Direct from developerAbove 272,000 context tokens | $4 | $15 | Source09/29/2026 | |
| DeepSeek-V4.1-Flash | DeepSeek | Direct from developerStandard API | $0.15 | $0.6 | Source09/23/2026 |
| Alibaba | Via OpenRouteralibaba | $0.3 | $1.2 | Source09/30/2026 | |
| AtlasCloud | Via OpenRouteratlas-cloud/fp8 | $0.114 | $0.456 | Source09/30/2026 | |
| Baidu | Via OpenRouterbaidu/fp8 | $0.2997 | $1.1988 | Source09/30/2026 | |
| BaseTen | Via OpenRouterbaseten/fast | $0.6 | $2.4 | Source09/30/2026 | |
| BaseTen | Via OpenRouterbaseten/fp8#1 | $0.3 | $1.2 | Source09/30/2026 | |
| BaseTen | Via OpenRouterbaseten/fp8#2 | $0.3 | $1.2 | Source09/30/2026 | |
| DeepInfra | Via OpenRouterdeepinfra/fp8 | $0.14 | $0.42 | Source09/30/2026 | |
| DeepSeek | Via OpenRouterdeepseek | $0.15 | $0.6 | Source09/30/2026 | |
| DekaLLM | Via OpenRouterdekallm | $0.12 | $0.4 | Source09/30/2026 | |
| DigitalOcean | Via OpenRouterdigitalocean | $0.3 | $1.2 | Source09/30/2026 | |
| Fireworks | Via OpenRouterfireworks | $0.22 | $0.66 | Source09/30/2026 | |
| Fireworks | Via OpenRouterfireworks/us | $0.45 | $1.8 | Source09/30/2026 | |
| GMICloud | Via OpenRoutergmicloud/fp8 | $0.18 | $0.72 | Source09/30/2026 | |
| InferenceNet | Via OpenRouterinference-net | $0.04 | $0.6 | Source09/30/2026 | |
| Io Net | Via OpenRouterio-net/fp8 | $0.09 | $0.41 | Source09/30/2026 | |
| Ionstream | Via OpenRouterionstream | $0.1 | $1.15 | Source09/30/2026 | |
| Krea | Via OpenRouterkrea/fp8 | $0.225 | $0.9 | Source09/30/2026 | |
| Makora | Via OpenRoutermakora/fp8 | $0.3 | $1.2 | Source09/30/2026 | |
| Modal | Via OpenRoutermodal | $0.3 | $1.2 | Source09/30/2026 | |
| Morph | Via OpenRoutermorph/fp8 | $0.078 | $0.504 | Source09/30/2026 | |
| NextBit | Via OpenRouternextbit/fp8 | $0.21 | $0.84 | Source09/30/2026 | |
| Novita | Via OpenRouternovita/fp8 | $0.3 | $1.2 | Source09/30/2026 | |
| OpenInference | Via OpenRouteropen-inference/fp4 | Lowest listed price: $0.0198 | Lowest listed price: $0.396 | Source09/30/2026 | |
| Parasail | Via OpenRouterparasail/fp8 | $0.3 | $1.2 | Source09/30/2026 | |
| Phala | Via OpenRouterphala | $0.21 | $0.84 | Source09/30/2026 | |
| Relace | Via OpenRouterrelace | $0.02 | $0.6 | Source09/30/2026 | |
| Sail Research | Via OpenRoutersail-research/fp4 | $0.08 | $0.4 | Source09/30/2026 | |
| SiliconFlow | Via OpenRoutersiliconflow/fp8 | $0.3 | $1.2 | Source09/30/2026 | |
| StreamLake | Via OpenRouterstreamlake/fp8 | $0.147 | $0.588 | Source09/30/2026 | |
| Together | Via OpenRoutertogether | $0.3 | $1.2 | Source09/30/2026 | |
| Venice | Via OpenRoutervenice/fp8 | $0.375 | $1.5 | Source09/30/2026 | |
| Wafer | Via OpenRouterwafer | $0.0649 | $0.44 | Source09/30/2026 |
Performance
Shared benchmarks
Only published results with the same benchmark version, task, metric, and comparison cohort are paired. Different reasoning levels, agents, harnesses, or output limits appear directly in the table.
Capability profile from matched benchmarks
Each axis averages directly matched benchmark families. A value of 100 means the stronger value within this pair, not a universal quality score.
Not enough directly matched categories for a reliable radar
Only 0 of at least 5 categories have comparable, direct model measurements. The benchmark tables below show the available evidence without filling missing axes.
No directly comparable result series yet
No published benchmark for GPT-6.1 Sol and DeepSeek-V4.1-Flash currently matches in version, task, metric, and comparison cohort. We therefore show no estimated or blended values.
Our model tests
Our tests
Compare how the models respond to the same prompt. Each test shows the first attempt, with no subsequent fixes to the generated code. These results do not contribute to an overall score.
Pelican on a bicycle
A community classic for free-form SVG drawing.
DeepSeek-V4.1-Flash
Not tested yet
Prompt and test conditions
Generate an SVG of a pelican riding a bicycle
Token limit including reasoning: 8,192 tokens
Task origin (Simon Willison)How to read this comparison
Winning one benchmark is not an overall verdict
Your workload, budget, and required context length matter most. A coding benchmark says little about visual understanding or agent performance.
The standard price table uses direct developer rates. The provider comparison labels OpenRouter endpoints, regions, and special tariffs separately.
Every result links to its measurement source and retrieval date. Labels distinguish vendor reports, official benchmark leaderboards, and independent evaluations. Disputed or archived results are excluded.
More matchups
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