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GPT 4o Mini vs DeepSeek V4 Flash

At a glance

OpenAI's most advanced small model — fast and affordable.

61128K ctx$0.15/$0.60 per M#69/92

Efficiency-optimized DeepSeek V4 at 284B total / 13B active for fast, high-throughput inference.

1.0M ctx$0.09/$0.19 per M
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI60.8
Reasoning & Knowledge
Graduate Science37.7%
Math
Math Problems52.6%Competition Math6.9%
Coding
Code Editing3.6%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper55%
Capability
Capability—
Reasoning & Knowledge
Graduate Science—
Math
Math Problems—Competition Math—
Coding
Code Editing—
Specs
128K
Context
16K
Max output
Jul 2024
Released
1.0M
Context
16K
Max output
Apr 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$0.15/M tokens
Output$0.60/M tokens
Cache read$0.07/M tokens
Live pricing, shown before you run
Input37%$0.09/M tokens
Output69%$0.19/M tokens
Cache read75%$0.02/M tokens
Chat with GPT 4o MiniGo to model
Chat with DeepSeek V4 FlashGo to model
Frequently Asked Questions: GPT 4o Mini vs DeepSeek V4 Flash▼

Which is better, GPT 4o Mini or DeepSeek V4 Flash?

▼

Both GPT 4o Mini and DeepSeek V4 Flash are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, GPT 4o Mini or DeepSeek V4 Flash?

▼

DeepSeek V4 Flash has a lower blended cost. GPT 4o Mini: $0.15 input / $0.60 output. DeepSeek V4 Flash: $0.09 input / $0.19 output.

Which has a larger context window, GPT 4o Mini or DeepSeek V4 Flash?

▼

DeepSeek V4 Flash has a larger context window: GPT 4o Mini supports 128K tokens vs DeepSeek V4 Flash at 1M tokens.

Do both GPT 4o Mini and DeepSeek V4 Flash support vision?

▼

GPT 4o Mini supports vision/image input, but DeepSeek V4 Flash does not.

What are the key differences between GPT 4o Mini and DeepSeek V4 Flash?

▼

Key differences: only GPT 4o Mini supports vision input; only DeepSeek V4 Flash offers extended reasoning mode. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both GPT 4o Mini and DeepSeek V4 Flash for free on idapt.app to see which performs better for your specific needs.

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