deepseek-v4-pro vs gpt-5.6-luna
Side-by-side comparison of deepseek-v4-pro and gpt-5.6-luna: benchmarks, pricing, context window and capabilities. Both are accessible through Requesty's unified API. gpt-5.6-luna outperforms deepseek-v4-pro on 3 of 5 shared benchmarks.
Fireworks AI
deepseek-v4-pro
Input / 1M
$1.74
Output / 1M
$3.48
Context
1M
Model ID
fireworks/deepseek-v4-pro
gpt-5.6-luna
Input / 1M
$0.20
Output / 1M
$1.20
Context
1.1M
Model ID
openai/gpt-5.6-luna
Benchmark comparison
Intelligence Indexreasoning
deepseek-v4-pro53.0%
gpt-5.6-luna52.3%
Coding Indexcoding
deepseek-v4-pro68.8%
gpt-5.6-luna71.4%
GPQA Diamondreasoning
deepseek-v4-pro92.8%
gpt-5.6-luna91.1%
SciCodecoding
deepseek-v4-pro49.2%
gpt-5.6-luna52.5%
Humanity's Last Examreasoning
deepseek-v4-pro39.3%
gpt-5.6-luna39.5%
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
| deepseek-v4-pro | gpt-5.6-luna | |
|---|---|---|
| Input price / 1M | $1.74 | $0.20 |
| Output price / 1M | $3.48 | $1.20 |
| Context window | 1M tokens | 1.1M tokens |
| Max output | 131K tokens | 128K tokens |
| Vision input | N/A | Yes |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Prompt caching | Yes | Yes |
| Computer use | N/A | N/A |
| Provider | Fireworks AI | OpenAI Inc. |
Questions people ask
Is deepseek-v4-pro better than gpt-5.6-luna?
gpt-5.6-luna outperforms deepseek-v4-pro on 3 of 5 shared benchmarks. See the benchmark comparison above for specifics: deepseek-v4-pro and gpt-5.6-luna have different strengths across reasoning, coding, math and multimodal tasks.
Which is cheaper, deepseek-v4-pro or gpt-5.6-luna?
gpt-5.6-luna is cheaper. deepseek-v4-pro costs $1.74/$3.48 per 1M input/output tokens, while gpt-5.6-luna costs $0.20/$1.20.
Can I use deepseek-v4-pro and gpt-5.6-luna through the same API?
Yes. Requesty provides a single OpenAI-compatible API that routes to both. Change just the "model" parameter to switch between "fireworks/deepseek-v4-pro" and "openai/gpt-5.6-luna", no other code changes needed.
What are the context windows?
deepseek-v4-pro supports up to 1M tokens of context. gpt-5.6-luna supports up to 1.1M 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 deepseek-v4-pro and gpt-5.6-luna with one line of code
Requesty provides a single OpenAI-compatible API for 600+ models. Change the model parameter, not your code.