gemini-3.5-flash vs deepseek-v4-flash
Side-by-side comparison of gemini-3.5-flash and deepseek-v4-flash: benchmarks, pricing, context window and capabilities. Both are accessible through Requesty's unified API. gemini-3.5-flash outperforms deepseek-v4-flash on 5 of 5 shared benchmarks.
gemini-3.5-flash
Input / 1M
$1.50
Output / 1M
$9.00
Context
1.0M
Model ID
google/gemini-3.5-flash
deepseek-v4-flash
Input / 1M
$0.14
Output / 1M
$0.28
Context
1.0M
Model ID
novita/deepseek/deepseek-v4-flash
Benchmark comparison
Intelligence Indexreasoning
gemini-3.5-flash52.0%
deepseek-v4-flash51.8%
Coding Indexcoding
gemini-3.5-flash70.1%
deepseek-v4-flash69.1%
GPQA Diamondreasoning
gemini-3.5-flash92.2%
deepseek-v4-flash90.8%
Terminal-Bench Hardagentic
gemini-3.5-flash40.9%
deepseek-v4-flashN/A
τ²-Benchagentic
gemini-3.5-flash95.3%
deepseek-v4-flashN/A
SciCodecoding
gemini-3.5-flash53.1%
deepseek-v4-flash49.9%
Humanity's Last Examreasoning
gemini-3.5-flash42.7%
deepseek-v4-flash38.6%
Scores sourced from official model cards, Artificial Analysis, and public leaderboards. Benchmarks measure specific skills and don't capture every aspect of model quality.
Pricing & specifications
| gemini-3.5-flash | deepseek-v4-flash | |
|---|---|---|
| Input price / 1M | $1.50 | $0.14 |
| Output price / 1M | $9.00 | $0.28 |
| Context window | 1.0M tokens | 1.0M tokens |
| Max output | 66K tokens | N/A |
| Vision input | Yes | N/A |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Prompt caching | Yes | N/A |
| Computer use | N/A | N/A |
| Provider | Google LLC (Gemini API) | Novita AI |
Questions people ask
Is gemini-3.5-flash better than deepseek-v4-flash?
gemini-3.5-flash outperforms deepseek-v4-flash on 5 of 5 shared benchmarks. See the benchmark comparison above for specifics: gemini-3.5-flash and deepseek-v4-flash have different strengths across reasoning, coding, math and multimodal tasks.
Which is cheaper, gemini-3.5-flash or deepseek-v4-flash?
deepseek-v4-flash is cheaper. gemini-3.5-flash costs $1.50/$9.00 per 1M input/output tokens, while deepseek-v4-flash costs $0.14/$0.28.
Can I use gemini-3.5-flash and deepseek-v4-flash through the same API?
Yes. Requesty provides a single OpenAI-compatible API that routes to both. Change just the "model" parameter to switch between "google/gemini-3.5-flash" and "novita/deepseek/deepseek-v4-flash", no other code changes needed.
What are the context windows?
gemini-3.5-flash supports up to 1.0M tokens of context. deepseek-v4-flash supports up to 1.0M tokens. Longer context means you can feed larger documents or codebases in a single prompt, though quality often degrades past 128K for most models.
Switch between gemini-3.5-flash and deepseek-v4-flash with one line of code
Requesty provides a single OpenAI-compatible API for 600+ models. Change the model parameter, not your code.