All models
Head to head
GPT-OSS 120B vs DeepSeek V4.1 Flash
Price, context, inputs and filters. No benchmarks theatre.
GPT-OSS 120B costs 3.7× less per message.
DeepSeek V4.1 Flash holds 8× more context.
Fact
Made by
OpenAI
DeepSeek
Content tier
Open
Open
Intelligence
Smart & Cheap
Smart & Cheap
Price per message
~0.06 credits≈ 1,666 messages for $1
~0.22 credits≈ 454 messages for $1
Context window
131K tokens≈ 202 pages of text in one go
1M tokens≈ 1,613 pages of text in one go
Reads
Text
Text, Images
Writes
Text
Text
Tool use
Yes - search, memory, code and more
Yes - search, memory, code and more
Served via
OpenRouter, Unbottled AI
OpenRouter, Unbottled AI
Status
Current
Current
A typical message: 16K tokens in, 1.5K out. Short replies cost less. 1 credit = $0.01.