DeepSeek-V4-FlashvsGemini 3.5 Flash-Lite
DeepSeek-V4-Flash | Gemini 3.5 Flash-Lite | |
|---|---|---|
| API pricingUSD per 1M tokens · lower wins | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | — | $0.30 |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | — | $2.50 |
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again. | — | $0.03 |
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | $0.0679DigitalOcean | — |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | $0.168DigitalOcean | — |
| Benchmarks | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | 18% | 65% |
| BenchmarksPublished by one model only | ||
SWE-Bench ProAgentic coding — Can the AI fix real bugs in real software? It's handed actual problems from open-source projects and has to write code that genuinely solves them. Higher is better. | — | 54.2% |
LiveCodeBenchCompetitive coding — Coding problems published so recently the AI can't have seen them in training — a contamination-free test of raw programming skill. Higher is better. | 91.6% | — |
Terminal-Bench 2.1Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Higher is better. | — | 54% |
BU BenchBrowser agent — Can the AI drive a real web browser to finish tasks — clicking, filling forms, and navigating sites the way a person would? Run by Browser Use on their BU Bench task set. Higher is better. | — | 49% |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 88.1% | — |
OSWorld-VerifiedAgentic computer use — Can the AI actually operate a computer — clicking, typing, and using real apps — to finish tasks on its own? Higher is better. | — | 74% |
GDPval-AA v2Knowledge work — economically valuable knowledge work (v2, re-based Elo) | — | 1140 |
| Overview | ||
| Company | DeepSeek | |
| Release date | Apr 24 2026 | Jul 21 2026 |
| Access | Open Weight | Proprietary |
Other comparisons
Frequently asked questions
Gemini 3.5 Flash-Lite leads DeepSeek-V4-Flash on 1 of the 1 benchmark they both report (BullshitBench v2). Only Gemini 3.5 Flash-Lite has a verified first-party API price: $0.30 per million input tokens and $2.50 per million output tokens. No pay-as-you-go API rate is tracked for DeepSeek-V4-Flash. DeepSeek-V4-Flash shipped 88 days before Gemini 3.5 Flash-Lite, so benchmark comparisons should account for the intervening progress.
DeepSeek-V4-Flash is open weight, while Gemini 3.5 Flash-Lite is proprietary.
On BullshitBench v2, Gemini 3.5 Flash-Lite leads at 65% vs DeepSeek-V4-Flash at 18%.
DeepSeek-V4-Flash was released by DeepSeek on Apr 24 2026.
Gemini 3.5 Flash-Lite was released by Google on Jul 21 2026.
Only Gemini 3.5 Flash-Lite has a verified first-party API price: $0.30 per million input tokens and $2.50 per million output tokens. No pay-as-you-go API rate is tracked for DeepSeek-V4-Flash. Rates are pay-as-you-go API prices verified on August 18, 2026.
DeepSeek-V4-Flash is an open weight model released by DeepSeek. Gemini 3.5 Flash-Lite is a proprietary model released by Google.