High-volume, cost-sensitive work
Choose GPT-4o Mini
GPT-4o Mini costs 19% less on a typical mix of three input tokens for every output token ($0.26 against $0.32 per million tokens).
DeepSeek V4 Flash Vision Exp vs GPT-4o Mini: price, context and capabilities
Choose DeepSeek V4 Flash Vision Exp for reused prompts and documents (RAG, agents), very long inputs and the latest release. Choose GPT-4o Mini for high-volume, cost-sensitive work and writing and code generation.
In short
- GPT-4o Mini is 19% cheaper than DeepSeek V4 Flash Vision Exp at the headline price ($0.2625 / 1M tokens vs $0.3234 / 1M tokens).
- DeepSeek V4 Flash Vision Exp reads more per request: 1.05M tokens against 128k.
- DeepSeek V4 Flash Vision Exp is the newer model (Aug 21, 2026, against Jul 18, 2024).
- Only DeepSeek V4 Flash Vision Exp offers reasoning.
- Only GPT-4o Mini offers batch api.
Which should you choose?
Each answer below comes straight from the published prices, specifications and independent benchmark results.
Writing and code generation
Choose GPT-4o Mini
GPT-4o Mini charges $0.60 per million output tokens, against $0.65 for DeepSeek V4 Flash Vision Exp. Output dominates the bill when answers are long.
Reused prompts and documents (RAG, agents)
Choose DeepSeek V4 Flash Vision Exp
DeepSeek V4 Flash Vision Exp charges <$0.01 per million cached input tokens, against $0.08 for GPT-4o Mini.
Very long inputs
Choose DeepSeek V4 Flash Vision Exp
DeepSeek V4 Flash Vision Exp reads up to 1.05M tokens per request, against 128k for GPT-4o Mini.
Latest release
Choose DeepSeek V4 Flash Vision Exp
DeepSeek V4 Flash Vision Exp is the newer release (Aug 21, 2026, against Jul 18, 2024 for GPT-4o Mini).
Monthly cost at three volumes
| Volume | DeepSeek V4 Flash Vision Exp | GPT-4o Mini | Difference |
|---|---|---|---|
| Prototype: 1M input, 250K output tokens | $0.38 | $0.30 | GPT-4o Mini, $0.08 less |
| Production: 20M input, 5M output tokens | $7.55 | $6.00 | GPT-4o Mini, $1.55 less |
| Scale: 500M input, 100M output tokens | $172.48 | $135.00 | GPT-4o Mini, $37.48 less |
Standard rates, without caching or batch discounts. Volumes are per month.
Specifications side by side
| DeepSeek V4 Flash Vision Exp | GPT-4o Mini | |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Category | Language models | Language models |
| Status | Preview | Deprecated |
| Headline price | $0.3234 / 1M tokens | $0.2625 / 1M tokens |
| Input | $0.2156 / 1M tokens | $0.15 / 1M tokens |
| Output | $0.6468 / 1M tokens | $0.60 / 1M tokens |
| Cached input | $0.0069 / 1M tokens | $0.075 / 1M tokens |
| Context window | 1.05M | 128k |
| Max output | 262k | 16k |
| Released | Aug 21, 2026 | Jul 18, 2024 |
| Knowledge cutoff | No data | October 2023 |
| Licence | Proprietary | Proprietary |
| Capabilities | Vision, Reasoning, Tool calling, Structured output, Prompt caching | Vision, Tool calling, Structured output, Prompt caching, Batch API |
| API model id | deepseek-v4-flash-vision-exp | gpt-4o-mini |
Benchmarks side by side
Leader in bold.
| Benchmark | DeepSeek V4 Flash Vision Exp | GPT-4o Mini |
|---|---|---|
| GPQA Diamond | No data | 42.6% |
| Humanity's Last Exam | No data | 4.2% |
| IFBench (instruction following) | No data | 31% |
| MMMU-Pro (visual reasoning) | No data | 41.5% |
Independent evaluations by Artificial Analysis, run the same way for every model, at the reasoning setting shown. Percentages unless marked as an index.
Frequently asked questions
Should I choose DeepSeek V4 Flash Vision Exp or GPT-4o Mini?
Choose DeepSeek V4 Flash Vision Exp for reused prompts and documents (RAG, agents), very long inputs and the latest release. Choose GPT-4o Mini for high-volume, cost-sensitive work and writing and code generation.
Which is cheaper, DeepSeek V4 Flash Vision Exp or GPT-4o Mini?
GPT-4o Mini is 19% cheaper than DeepSeek V4 Flash Vision Exp at the headline price ($0.2625 / 1M tokens vs $0.3234 / 1M tokens).
Which has the larger context window, DeepSeek V4 Flash Vision Exp or GPT-4o Mini?
DeepSeek V4 Flash Vision Exp reads more per request: 1.05M tokens against 128k.
What is the difference between DeepSeek V4 Flash Vision Exp and GPT-4o Mini?
DeepSeek V4 Flash Vision Exp is made by DeepSeek and GPT-4o Mini by OpenAI. GPT-4o Mini is 19% cheaper than DeepSeek V4 Flash Vision Exp at the headline price ($0.2625 / 1M tokens vs $0.3234 / 1M tokens). DeepSeek V4 Flash Vision Exp reads more per request: 1.05M tokens against 128k. DeepSeek V4 Flash Vision Exp is the newer model (Aug 21, 2026, against Jul 18, 2024). Only DeepSeek V4 Flash Vision Exp offers reasoning. Only GPT-4o Mini offers batch api.
How much do DeepSeek V4 Flash Vision Exp and GPT-4o Mini cost per month?
At 20 million input and 5 million output tokens a month, DeepSeek V4 Flash Vision Exp costs $7.55 and GPT-4o Mini costs $6.00, at standard rates.
Which is newer, DeepSeek V4 Flash Vision Exp or GPT-4o Mini?
DeepSeek V4 Flash Vision Exp was released on Aug 21, 2026 and GPT-4o Mini on Jul 18, 2024.