DeepSeek V4.1 Flash vs GPT-6 Sol
At a Glance
| Compare |  DeepSeek V4.1 FlashDeepSeek |  GPT-6 SolOpenAI |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v4.4 | #8 of 5783.3 score · 2/3 sources · provisional · missing LMArena Text · full-core range 55.5–88.8 | UnrankedNot in the 57-model eligible cohort |
| CostLower is better · Published-token output estimate | #6 of 27$0.022 per LiveBench case | UnrankedNot in the 27-model eligible cohort |
| EfficiencyHigher is better · MM Efficiency v1.9 | #1 of 2771.7 score · 2/3 sources · provisional · missing LMArena Text · full-core range 57.8–74.5 | UnrankedNot in the 27-model eligible cohort |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $0.15DeepSeek ↗ · Sep 10, 2026 | $2.00Openai ↗ · Sep 22, 2026 |
| Output priceFrom · USD / 1M tokens | $0.60Deepinfra ↗ · Oct 19, 2026 | $10.00Openai ↗ · Sep 22, 2026 |
| Context windowMaximum documented tokens | 1,049K | 1,050K |
| Model facts checked | Sep 10, 2026View model evidence → | Sep 22, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
| Benchmark | DeepSeek-V4.1-Flash | GPT-6 Sol |
|---|---|---|
| ARC-AGI-1verified-v1-613c385b0c93 · verified_score · leader | 94.5099% of row best · percent · DeepSeek V4.1 Flash (Max) | 95.50100% of row best · percent · GPT-6 Sol (Max) |
| ARC-AGI-2verified-v2-be40992860f9 · verified_score · leader | 72.9281% of row best · percent · DeepSeek V4.1 Flash (Max) | 89.58100% of row best · percent · GPT-6 Sol (Max) |
| LiveBench2026-06-25-90f8d44da965 · overall · leader | 83.2099% of row best · percent · deepseek-v4.1-flash-max · 36,355 output tokens / case | 83.83100% of row best · percent · gpt-6-sol-max · 17,131 output tokens / case |
| ToneBench2026-10-17-10-task-e9c76358afb2 · overall_score · unverified | 81.0397% of row best · points · DeepSeek V4.1 Flash (max) · 25,012 output tokens / case | 83.52100% of row best · points · GPT-6 Sol (max) · 10,008 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above | 0 benchmark wins | 3 benchmark winsOverall lead |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Side-by-Side Facts
| Field | DeepSeek-V4.1-Flash | GPT-6 Sol |
|---|---|---|
| Developer | DeepSeek | OpenAI |
| Family | Deepseek V4 1 | Gpt 6 |
| Model | DeepSeek-V4.1-Flash | GPT-6 Sol |
| Version | DeepSeek-V4.1-Flash | GPT-6 Sol |
| Lifecycle | active | active |
| Released | 2026-09-10 | 2026-09-22 |
| Knowledge cutoff | Unknown | 2026-04-20 |
| Input modalities | Text, Image | Text, Image |
| Output modalities | Text | Text |
| Context window | 1,049K | 1,050K |
| Total parameters | 763.2B | Unknown |
| Active parameters | Unknown | Unknown |
| License | mit | Unknown |
| Open weights | Yes | No |
| API available | Yes | Yes |
| Self-hostable | Yes | No |
| Provider access | DeepSeek (Standard), Deepinfra (Standard), Together Ai (Standard) | Openai (Standard), Openrouter (Standard) |
| Capabilities | agents, chat, fim, generation, reasoning, responses, structured_outputs, tools, vision | chat, computer-use, generation, reasoning, tools |
| Architecture design | Causal Encoder-Decoder (20 encoder + 20 decoder layers) | Unknown |
| Backbone parameters | 552000000000 parameters | Unknown |
| Active parameters during decode | 16000000000 parameters | Unknown |
| Default snapshot | Unknown | gpt-6-sol |
| Maximum input tokens | Unknown | 922000 |
| Active parameters during prefill | 8000000000 parameters | Unknown |
| Pre-training corpus | 45000000000000 tokens | Unknown |
| Reasoning effort | Unknown | none, low, medium, high, xhigh, max |
| Reasoning effort range | 1–100 | Unknown |
| Routed experts per MoE layer | 384 experts | Unknown |
| Routed experts per token | 6 experts | Unknown |
| Supported API routes | Unknown | v1/responses, v1/chat/completions, v1/batch |
| Transformer layers | 40 layers | Unknown |
DeepSeek V4.1 Flash Capabilities
GPT-6 Sol Capabilities
Related Comparisons
All image comparisons →| A | Pair | B | Context |
|---|---|---|---|
DeepSeek-V4-FlashDeepSeek | vs | DeepSeek-V4.1-FlashDeepSeek | family variantstext |
 MiniMax-M3MiniMax | vs | DeepSeek-V4.1-FlashDeepSeek | cross-developer peersimage, text |
DeepSeek-V4-Flash-BaseDeepSeek | vs | DeepSeek-V4.1-FlashDeepSeek | family variantstext |
DeepSeek-V4-ProDeepSeek | vs | DeepSeek-V4.1-FlashDeepSeek | family variantstext |
DeepSeek-V4.1-FlashDeepSeek | vs | GPT-6.1 SolOpenAI | cross-developer peersimage, text |
DeepSeek-V4.1-FlashDeepSeek | vs | Grok 4.7xAI | cross-developer peersimage, text |
DeepSeek-V4.1-FlashDeepSeek | vs |  MiMo-V2.6-ProXiaomi | cross-developer peersimage, text |
 Command A ReasoningCohere | vs | DeepSeek-V4.1-FlashDeepSeek | cross-developer peerstext |
DeepSeek-V4-Flash-Vision-ExpDeepSeek | vs | DeepSeek-V4.1-FlashDeepSeek | family variantsimage, text |
DeepSeek-V4.1-FlashDeepSeek | vs |  Gemma 4 26B-A4BGoogle DeepMind | cross-developer peersimage, text |
DeepSeek-V4.1-FlashDeepSeek | vs |  Kimi-K2.5Moonshot AI | cross-developer peersimage, text |
DeepSeek-V4.1-FlashDeepSeek | vs | GPT-5.4OpenAI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
DeepSeek V4.1 Flash vs GPT-6 Sol FAQs
Is DeepSeek V4.1 Flash or GPT-6 Sol better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both DeepSeek V4.1 Flash and GPT-6 Sol, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, DeepSeek V4.1 Flash or GPT-6 Sol?+
DeepSeek V4.1 Flash is $0.15 and GPT-6 Sol is $2.00 per million tokens, so DeepSeek V4.1 Flash is cheaper on this metric. DeepSeek V4.1 Flash is $0.60 and GPT-6 Sol is $10.00 per million tokens, so DeepSeek V4.1 Flash is cheaper on this metric.
Which has a larger context window, DeepSeek V4.1 Flash or GPT-6 Sol?+
GPT-6 Sol has the larger sourced context window. DeepSeek V4.1 Flash supports 1,048,576 tokens and GPT-6 Sol supports 1,050,000 tokens.
Which performs better in benchmarks, DeepSeek V4.1 Flash or GPT-6 Sol?+
GPT-6 Sol leads the current overall benchmark count. The result uses 3 protocol-matched benchmarks from 2 publishers; it is not a universal quality score.
Can DeepSeek V4.1 Flash or GPT-6 Sol be self-hosted?+
DeepSeek V4.1 Flash is documented as self-hostable; GPT-6 Sol is documented as not self-hostable. DeepSeek V4.1 Flash is open weight; GPT-6 Sol is not marked open weight.
Can DeepSeek V4.1 Flash and GPT-6 Sol understand images?+
DeepSeek V4.1 Flash is documented with image input; GPT-6 Sol is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, DeepSeek V4.1 Flash or GPT-6 Sol?+
DeepSeek V4.1 Flash has the larger sourced maximum output. DeepSeek V4.1 Flash supports 393,216 tokens and GPT-6 Sol supports 128,000 tokens.
Do DeepSeek V4.1 Flash and GPT-6 Sol support reasoning and tool use?+
DeepSeek V4.1 Flash: reasoning, tool calling, and image input. GPT-6 Sol: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, DeepSeek V4.1 Flash or GPT-6 Sol?+
DeepSeek V4.1 Flash has 3 sourced provider routes; GPT-6 Sol has 2, so DeepSeek V4.1 Flash has broader tracked availability.
Which offers better value, DeepSeek V4.1 Flash or GPT-6 Sol?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.