Data points: 61
The readout for GPT-5.4 and Grok-2, before the detailed comparison sheet.
Decision read
GPT-5.4
GPT-5.4 currently has the stronger profile, with verified wins split 4 to 2.
Evidence depth
61 data points
Includes 3 benchmark rows, 0 audit samples, and 6 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 9 high-signal samples across speed, scores, and audit health.
Model compare GPT-5.4 vs Grok-2gpt-5-4-vs-grok-2 | Model A GPT-5.4 | Model B Grok-2 |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 2 wins |
| Where it leads | Cheapest input price, Free providers, Provider coverage, Recent tests | Average speed, 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-2 |
|---|---|---|
| GPQA | 92.0%#3 | 51.0%#120 |
| SciCode | 56.6%#3 | 28.5%#94 |
| HLE | 41.6%#4 | 3.8%#97 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.4 | Grok-2 |
|---|---|---|
| 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-2 |
|---|---|---|
速创API5 tests | GPT-5.4 speed / latency 50 tok/s / 1423ms input / output No data | Grok-2 speed / latency N/A / N/A input / output No data |
AIGCBAR0 tests | GPT-5.4 speed / latency N/A / N/A input / output No data | Grok-2 speed / latency N/A / N/A input / output No data |
AIO通用智能服务平台0 tests | GPT-5.4 speed / latency N/A / N/A input / output No data | Grok-2 speed / latency N/A / N/A input / output No data |
APDSM0 tests | GPT-5.4 speed / latency N/A / N/A input / output No data | Grok-2 speed / latency N/A / N/A input / output No data |
CHB API0 tests | GPT-5.4 gpt-5.4-medium speed / latency N/A / N/A input / output $0.034/M / $0.205/M | Grok-2 grok-2 speed / latency N/A / N/A input / output $0.041/M / $0.205/M |
GPT-5.4 gpt-5.4 speed / latency No data input / output $0.027/M / $0.027/M | Grok-2 grok-2-1212 speed / latency No data input / output $10.27/M / $10.27/M |
This report only uses LMSpeed data for GPT-5.4 and Grok-2: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5.4 | Grok-2 |
|---|---|---|
| When to choose each model | GPT-5.4 GPT-5.4 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. | Grok-2 Grok-2 is stronger when you prioritize Average speed, First-token latency. |
TL;DR: GPT-5.4 leads across 61 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5.4 vs Grok-2 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.
