Data points: 78
The readout for DeepSeek R1 and GPT-5.4, before the detailed comparison sheet.
Decision read
GPT-5.4
GPT-5.4 currently has the stronger profile, with verified wins split 2 to 4.
Evidence depth
78 data points
Includes 6 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 14 high-signal samples across speed, scores, and audit health.
Model compare DeepSeek R1 vs GPT-5.4deepseek-r1-vs-gpt-5-4 | Model A DeepSeek R1 | Model B GPT-5.4 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 2 wins | 4 wins |
| Where it leads | Average speed, Recent tests | Cheapest input price, First-token latency, Free providers, Provider coverage |
| Model metadata | DeepSeek R1 exposes 163.8K tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. | GPT-5.4 exposes 1.1M tokens; notable signals: Text input, Image input, File input, Text output. |
| Developer | DeepSeek | OpenAI |
| Context window | 163.8K tokens | 1.1M tokens |
| Max output | 32.8K tokens | 128K tokens |
| Released | May 2025 | Mar 2026 |
| Modalities | Input Text Output Text | Input TextImageFile Output Text |
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | DeepSeek | GPT |
| Knowledge cutoff | 2025-03-31 | No data |
| OpenRouter ID | deepseek/deepseek-r1-0528 | openai/gpt-5.4 |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | DeepSeek R1 | GPT-5.4 |
|---|---|---|
| GPQA | 81.3%#51 | 92.0%#3 |
| SciCode | 40.3%#45 | 56.6%#3 |
| HLE | 14.9%#52 | 41.6%#4 |
| Input price | $1.35/M#31 | $2.50/M#37 |
| Output price | $4.20/M#32 | $15.00/M#44 |
| Blended price | $2.06/M#52 | $5.63/M#63 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | DeepSeek R1 | GPT-5.4 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | DeepSeek R1 | GPT-5.4 |
|---|---|---|
ChatGTP30 tests | DeepSeek R1 speed / latency 47 tok/s / 15233ms input / output No data | GPT-5.4 speed / latency N/A / N/A input / output No data |
OpenRouter24 tests | DeepSeek R1 speed / latency 43 tok/s / 16905ms input / output No data | GPT-5.4 speed / latency N/A / N/A input / output No data |
6345ywz API15 tests | DeepSeek R1 speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 41 tok/s / 6581ms input / output No data |
ocool AI13 tests | DeepSeek R1 speed / latency 104 tok/s / 2242ms input / output No data | GPT-5.4 speed / latency N/A / N/A input / output No data |
Fengsili API10 tests | DeepSeek R1 speed / latency N/A / N/A input / output No data | GPT-5.4 speed / latency 88 tok/s / 6075ms input / output No data |
DeepSeek R1 deepseek-r1-0528 speed / latency No data input / output $0.010/M / $0.010/M | GPT-5.4 gpt-5.4-openai-compact speed / latency No data input / output $75.00/M / $450.00/M | |
DeepSeek R1 deepseek-r1-0528 speed / latency No data input / output $0.010/M / $0.010/M | GPT-5.4 gpt-5.4-high speed / latency No data input / output $0.050/M / $0.050/M | |
DeepSeek R1 deepseek-r1 speed / latency No data input / output $0.024/M / $0.096/M | GPT-5.4 gpt-5.4-xhigh speed / latency No data input / output $0.034/M / $0.205/M |
This report only uses LMSpeed data for DeepSeek R1 and GPT-5.4: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | DeepSeek R1 | GPT-5.4 |
|---|---|---|
| When to choose each model | DeepSeek R1 DeepSeek R1 is stronger when you prioritize Average speed, Recent tests. | GPT-5.4 GPT-5.4 is stronger when you prioritize Cheapest input price, First-token latency, Free providers, Provider coverage. |
TL;DR: GPT-5.4 leads across 78 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from DeepSeek R1 vs GPT-5.4 into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
