DeepSeek R1 vs DeepSeek V4 Flash Base
At a Glance
| Compare |  DeepSeek R1DeepSeek | DeepSeek V4 Flash BaseDeepSeek |
|---|---|---|
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $0.70Openrouter ↗ · Aug 28, 2026 | Not reported |
| Output priceFrom · USD / 1M tokens | $2.50Openrouter ↗ · Aug 28, 2026 | Not reported |
| Context windowMaximum documented tokens | 164K | 1,049K |
| Model facts checked | Aug 28, 2026View model evidence → | Aug 28, 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
Side-by-Side Facts
| Field | DeepSeek-R1 | DeepSeek-V4-Flash-Base |
|---|---|---|
| Developer | DeepSeek | DeepSeek |
| Family | Deepseek R1 | Deepseek V4 Flash Base |
| Model | DeepSeek-R1 | DeepSeek-V4-Flash-Base |
| Version | DeepSeek-R1 | DeepSeek-V4-Flash-Base |
| Lifecycle | active | active |
| Released | 2025-01-20 | 2026-04-24 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text | Text |
| Output modalities | Text | Text |
| Context window | 164K | 1,049K |
| Total parameters | 684.5B | 292B |
| Active parameters | 37B | Unknown |
| License | mit | Unknown |
| Open weights | Yes | Yes |
| API available | Yes | Unknown |
| Self-hostable | Yes | Yes |
| Provider access | Hugging Face (Standard), Openrouter (Standard) | Unknown |
| Capabilities | chat, generation, reasoning | generation |
DeepSeek R1 Capabilities
DeepSeek V4 Flash Base Capabilities
Related Comparisons
All text comparisons →| A | Pair | B | Context |
|---|---|---|---|
DeepSeek-R1DeepSeek | vs |  GPT-6 AstraOpenAI | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs | DeepSeek-R1DeepSeek | cross-developer peerstext |
DeepSeek-R1DeepSeek | vs |  Gemini 3.1 ProGoogle DeepMind | cross-developer peerstext |
DeepSeek-R1DeepSeek | vs | DeepSeek-V4.1-FlashDeepSeek | family variantstext |
DeepSeek-R1DeepSeek | vs | Grok 4.6xAI | cross-developer peerstext |
DeepSeek-R1DeepSeek | vs |  Qwen3.8-MaxQwen | cross-developer peerstext |
DeepSeek-R1DeepSeek | vs |  Kimi-K3Moonshot AI | cross-developer peerstext |
 MiniMax-M3MiniMax | vs | DeepSeek-R1DeepSeek | cross-developer peerstext |
DeepSeek-R1DeepSeek | vs |  GLM-5.3Z.ai | cross-developer peerstext |
DeepSeek-R1DeepSeek | vs |  Hy4 previewTencent | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | DeepSeek-R1DeepSeek | cross-developer peerstext |
DeepSeek-R1DeepSeek | vs |  Mistral Large 3Mistral AI | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
DeepSeek R1 vs DeepSeek V4 Flash Base FAQs
Is DeepSeek R1 or DeepSeek V4 Flash Base better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both DeepSeek R1 and DeepSeek V4 Flash Base, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, DeepSeek R1 or DeepSeek V4 Flash Base?+
Only DeepSeek R1 has a directly sourced input price: $0.70 per million tokens. Only DeepSeek R1 has a directly sourced output price: $2.50 per million tokens.
Which has a larger context window, DeepSeek R1 or DeepSeek V4 Flash Base?+
DeepSeek V4 Flash Base has the larger sourced context window. DeepSeek R1 supports 164K and DeepSeek V4 Flash Base supports 1,049K.
Which performs better in benchmarks, DeepSeek R1 or DeepSeek V4 Flash Base?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can DeepSeek R1 or DeepSeek V4 Flash Base be self-hosted?+
Both models have the same recorded self-hosting status: supported. DeepSeek R1 is open weight; DeepSeek V4 Flash Base is open weight.
Can DeepSeek R1 and DeepSeek V4 Flash Base understand images?+
DeepSeek R1 is not documented with image input; DeepSeek V4 Flash Base is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, DeepSeek R1 or DeepSeek V4 Flash Base?+
Neither has a larger sourced maximum output. DeepSeek R1 is 33K and DeepSeek V4 Flash Base is —.
Do DeepSeek R1 and DeepSeek V4 Flash Base support reasoning and tool use?+
DeepSeek R1: reasoning. DeepSeek V4 Flash Base: none of these features are definitively sourced. Feature support does not establish relative quality.
Which is available from more inference providers, DeepSeek R1 or DeepSeek V4 Flash Base?+
DeepSeek R1 has 2 sourced provider routes; DeepSeek V4 Flash Base has 0, so DeepSeek R1 has broader tracked availability.
Which offers better value, DeepSeek R1 or DeepSeek V4 Flash Base?+
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.