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GPT-5 Image Mini vs DeepSeek V3.1

Detailed technical comparison between GPT-5 Image Mini (OpenAI) and DeepSeek V3.1 (DeepSeek). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

GPT-5 Image Mini: 6 WinsvsDeepSeek V3.1: 0 Wins
Context Leader

GPT-5 Image Mini

400,000 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

DeepSeek V3.1

$0.25 / MTok
OpenAIactive

GPT-5 Image Mini

GPT-5 Image Mini combines OpenAI's advanced language capabilities, powered by [GPT-5 Mini](https://openrouter.ai/openai/gpt-5-mini), with GPT Image 1 Mini for efficient image generation. This natively multimodal model features superior instruction following, text...

View GPT-5 Image Mini Full Specs →
DeepSeekactive

DeepSeek V3.1

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

View DeepSeek V3.1 Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationGPT-5 Image MiniDeepSeek V3.1
ProviderOpenAIDeepSeek
Context Window400,000 tokens🏆163,840 tokens
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelmanaged apiself hostable
Production StabilityStable GA (est.)Stable GA (est.)
API AvailableYesYes
Released Date2025-10-162025-08-21

API Pricing Comparison

Input Price per Million Tokens

GPT-5 Image Mini

$2.50

DeepSeek V3.1

$0.25

Output Price per Million Tokens

GPT-5 Image Mini

$2.00

DeepSeek V3.1

$0.95

💡 Cost Ratio: DeepSeek V3.1 is 10.0x cheaper per input token than GPT-5 Image Mini.

Want to test both models live?

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Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
90.8%vs80.0%+10.8% GPT-5 Image Mini
GPT-5 Image Mini 🏆
DeepSeek V3.1
HumanEvalPython coding & logic synthesis
92.0%vs78.2%+13.8% GPT-5 Image Mini
GPT-5 Image Mini 🏆
DeepSeek V3.1
MATHComplex mathematical problem solving
79.2%vs55.4%+23.8% GPT-5 Image Mini
GPT-5 Image Mini 🏆
DeepSeek V3.1
GPQAGraduate-level expert reasoning
57.6%vs40.8%+16.8% GPT-5 Image Mini
GPT-5 Image Mini 🏆
DeepSeek V3.1
HellaSwagCommonsense reasoning and inference
89.8%vs83.0%+6.8% GPT-5 Image Mini
GPT-5 Image Mini 🏆
DeepSeek V3.1
MT-BenchMulti-turn conversation flow quality
9.2%vs8.6%+0.7% GPT-5 Image Mini
GPT-5 Image Mini 🏆
DeepSeek V3.1

GPT-5 Image Mini Quirks & Gotchas

No developer gotchas reported.

DeepSeek V3.1 Quirks & Gotchas

No developer gotchas reported.

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