Which is cheaper, DeepSeek V4 Pro and MiniMax M3.1 Flash?

MiniMax M3.1 Flash has the lowest input price. Per 1M input tokens: DeepSeek V4 Pro from $1.74 and MiniMax M3.1 Flash from $0.15.

Which has the larger context window, DeepSeek V4 Pro and MiniMax M3.1 Flash?

DeepSeek V4 Pro has the largest context window: DeepSeek V4 Pro 1,048,576 tokens and MiniMax M3.1 Flash 1,000,000 tokens.

Which is smarter, DeepSeek V4 Pro and MiniMax M3.1 Flash?

MiniMax M3.1 Flash scores highest on the Artificial Analysis Intelligence Index: DeepSeek V4 Pro 23.1 and MiniMax M3.1 Flash 28.9.

Can I switch between DeepSeek V4 Pro and MiniMax M3.1 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-pro, minimax/minimax-m3.1-flash).

DeepSeek V4 Pro vs MiniMax M3.1 Flash

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

Estimate monthly cost for these models

DeepSeek V4 Pro DeepSeekdeepseek/deepseek-v4-pro

MiniMax M3.1 Flash Minimaxminimax/minimax-m3.1-flash

Creator

DeepSeek

Minimax

Released

Apr 24, 2026

Oct 19, 2026

Context window

1.05M

Max output

384K

524K

Input / 1MLowest provider price

$1.74$1.74–$2.40 across 3

$0.15

Output / 1MLowest provider price

$3.48$3.48–$4.80 across 3

$0.60

Providers

IntelligenceArtificial Analysis index

23.1

28.9

LatencyMedian time to first token

4.9s

—

ThroughputMedian tokens per second

<1 t/s

—

Accepts

Text

Text, Image, Video

Produces

Text

Tool calling

Yes

Structured output

Yes

Reasoning

Yes

DeepSeek V4 Pro vs MiniMax M3.1 Flash: summary

DeepSeek V4 Pro and MiniMax M3.1 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 Pro, from DeepSeek, has a 1,048,576-token context window, costs from $1.74/1M input and $3.48/1M output tokens across 3 providers and scores 23.1 on the Artificial Analysis Intelligence Index.

MiniMax M3.1 Flash, from Minimax, has a 1,000,000-token context window, costs $0.15/1M input and $0.60/1M output tokens and scores 28.9 on the Artificial Analysis Intelligence Index.

MiniMax M3.1 Flash is the cheapest on input, 12× cheaper than the next model, DeepSeek V4 Pro has the largest context window and MiniMax M3.1 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-pro", messages=[...]) # or client.chat.completions.create(model="minimax/minimax-m3.1-flash", messages=[...])

Full API docs

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Benchmark scores sourced from ArtificialAnalysis