Data points: 67
The readout for GPT-5.4 and Grok-3, before the detailed comparison sheet.
Decision read
GPT-5.4
GPT-5.4 currently has the stronger profile, with verified wins split 5 to 1.
Evidence depth
67 data points
Includes 6 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 15 high-signal samples across speed, scores, and audit health.
Model compare GPT-5.4 vs Grok-3gpt-5-4-vs-grok-3 | Model A GPT-5.4 | Model B Grok-3 |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 5 wins | 1 wins |
| Where it leads | Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests | First-token latency |
| Model metadata | GPT-5.4 exposes 1.1M tokens; notable signals: Text input, Image input, File input, Text output. | No OpenRouter metadata is available yet for this model. |
| Developer | OpenAI | No data |
| Context window | 1.1M tokens | No data |
| Max output | 128K tokens | No data |
| Released | Mar 2026 | No data |
| Modalities | Input TextImageFile Output Text | No data |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | None listed |
| Parameters | No data | No data |
| Tokenizer | GPT | No data |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | openai/gpt-5.4 | No data |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | GPT-5.4 | Grok-3 |
|---|---|---|
| GPQA | 92.0%#3 | 69.3%#80 |
| SciCode | 56.6%#3 | 36.8%#67 |
| HLE | 41.6%#4 | 5.1%#86 |
| Input price | $2.50/M#37 | $4.00/M#40 |
| Output price | $15.00/M#44 | $20.00/M#46 |
| Blended price | $5.63/M#63 | $8.00/M#67 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.4 | Grok-3 |
|---|---|---|
| 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 | GPT-5.4 | Grok-3 |
|---|---|---|
天宫造物50 tests | GPT-5.4 speed / latency 50 tok/s / 7305ms input / output No data | Grok-3 speed / latency N/A / N/A input / output No data |
鲨鱼魔法25 tests | GPT-5.4 speed / latency N/A / N/A input / output No data | Grok-3 speed / latency 39 tok/s / 2642ms input / output No data |
星见雅 API20 tests | GPT-5.4 speed / latency 49 tok/s / 5435ms input / output No data | Grok-3 speed / latency N/A / N/A input / output No data |
6345ywz API15 tests | GPT-5.4 speed / latency 41 tok/s / 6581ms input / output No data | Grok-3 speed / latency N/A / N/A input / output No data |
0CHAT10 tests | GPT-5.4 speed / latency 51 tok/s / 2526ms input / output No data | Grok-3 speed / latency N/A / N/A input / output No data |
GPT-5.4 gpt-5.4-openai-compact speed / latency No data input / output $75.00/M / $450.00/M | Grok-3 grok-3 speed / latency No data input / output $0/M / $0/M | |
GPT-5.4 gpt-5.4-free speed / latency No data input / output $0/M / $0/M | Grok-3 grok-3-fast-beta speed / latency No data input / output $10.00/M / $50.00/M | |
GPT-5.4 gpt-5.4 speed / latency No data input / output $9.25/M / $55.48/M | Grok-3 grok-3 speed / latency No data input / output $0.0014/M / $0.0014/M | |
GPT-5.4 gpt-5.4 speed / latency No data input / output $2.50/M / $15.00/M | Grok-3 grok-3 speed / latency No data input / output $0.0080/M / $0.0080/M |
This report only uses LMSpeed data for GPT-5.4 and Grok-3: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5.4 | Grok-3 |
|---|---|---|
| When to choose each model | GPT-5.4 GPT-5.4 is stronger when you prioritize Cheapest input price, Average speed, Free providers, Provider coverage, Recent tests. | Grok-3 Grok-3 is stronger when you prioritize First-token latency. |
TL;DR: GPT-5.4 leads across 67 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5.4 vs Grok-3 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.
