Which is cheaper, DeepSeek V4.1 Flash and Gemini 3.7 Flash?

DeepSeek V4.1 Flash has the lowest input price. Per 1M input tokens: DeepSeek V4.1 Flash from $0.20 and Gemini 3.7 Flash from $0.75.

Can I switch between DeepSeek V4.1 Flash and Gemini 3.7 Flash without changing my code?

Yes. All of them are served through FastRouter's OpenAI-compatible API, so switching is a change of the model parameter (deepseek/deepseek-v4.1-flash, google/gemini-3.7-flash).

DeepSeek V4.1 Flash vs Gemini 3.7 Flash

Side-by-side pricing per provider, context window, benchmark scores and speed, all on one OpenAI-compatible API.

DeepSeek V4.1 Flash DeepSeekdeepseek/deepseek-v4.1-flash

Gemini 3.7 Flash Googlegoogle/gemini-3.7-flash

Creator

DeepSeek

Google

Released

Sep 14, 2026

Aug 13, 2026

Context window

1.05M

Max output

944K

66K

Input / 1MLowest provider price

$0.20$0.20–$0.30 across 5

$0.75

Output / 1MLowest provider price

$0.60$0.60–$1.20 across 5

$3.75

Providers

IntelligenceArtificial Analysis index

39.5

39.1

CodingArtificial Analysis index

—

76.1

Accepts

Text, Image

Text, Image, Audio, Video, Files

Produces

Text

Tool calling

Yes

Structured output

Reasoning

DeepSeek V4.1 Flash vs Gemini 3.7 Flash: summary

DeepSeek V4.1 Flash and Gemini 3.7 Flash are both available through FastRouter's OpenAI-compatible API, so switching between them is a change of model id, not a new integration.

DeepSeek V4.1 Flash, from DeepSeek, has a 1,048,576-token context window, costs from $0.20/1M input and $0.60/1M output tokens across 5 providers and scores 39.5 on the Artificial Analysis Intelligence Index.

Gemini 3.7 Flash, from Google, has a 1,048,576-token context window, costs from $0.75/1M input and $3.75/1M output tokens across 2 providers and scores 39.1 on the Artificial Analysis Intelligence Index.

DeepSeek V4.1 Flash is the cheapest on input, 3.8× cheaper than the next model and DeepSeek V4.1 Flash scores highest for intelligence.

Switch with one line

client = OpenAI(base_url="https://api.fastrouter.ai/api/v1", api_key="<FASTROUTER_API_KEY>") client.chat.completions.create(model="deepseek/deepseek-v4.1-flash", messages=[...]) # or client.chat.completions.create(model="google/gemini-3.7-flash", messages=[...])

Full API docs

Frequently asked questions

More comparisons

Benchmark scores sourced from ArtificialAnalysis