Data points: 69
The readout for GPT-5.4 and Qwen3.5 Omni Flash, before the detailed comparison sheet.
Decision read
GPT-5.4
GPT-5.4 currently has the stronger profile, with verified wins split 4 to 0.
Evidence depth
69 data points
Includes 8 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with GPT-5.4
The charts below split 17 high-signal samples across speed, scores, and audit health.
Model compare GPT-5.4 vs Qwen3.5 Omni Flashgpt-5-4-vs-qwen3-5-omni-flash | Model A GPT-5.4 | Model B Qwen3.5 Omni Flash |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 0 wins |
| Where it leads | Cheapest input price, Free providers, Provider coverage, Recent tests | No data |
| 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 | Qwen3.5 Omni Flash |
|---|---|---|
| GPQA | 92.0%#3 | 74.2%#71 |
| SciCode | 56.6%#3 | 25.5%#100 |
| HLE | 41.6%#4 | 7.1%#77 |
| Output speed | 92.4 tok/s#56 | 258.1 tok/s#4 |
| Input price | $2.50/M#37 | $0.100/M#6 |
| Output price | $15.00/M#44 | $0.800/M#12 |
| Blended price | $5.63/M#63 | $0.275/M#16 |
| Time to first answer token | 134.24 s#111 | 0.98 s#23 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.4 | Qwen3.5 Omni Flash |
|---|---|---|
| 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 | Qwen3.5 Omni Flash |
|---|---|---|
Fengsili API10 tests | GPT-5.4 speed / latency 88 tok/s / 6075ms input / output No data | Qwen3.5 Omni Flash speed / latency N/A / N/A input / output No data |
小水管 API5 tests | GPT-5.4 speed / latency 44 tok/s / 2518ms input / output No data | Qwen3.5 Omni Flash speed / latency N/A / N/A input / output No data |
42公益站0 tests | GPT-5.4 speed / latency N/A / N/A input / output No data | Qwen3.5 Omni Flash speed / latency N/A / N/A input / output No data |
91VIP0 tests | GPT-5.4 speed / latency N/A / N/A input / output No data | Qwen3.5 Omni Flash speed / latency N/A / N/A input / output No data |
AI Claw API0 tests | GPT-5.4 speed / latency N/A / N/A input / output No data | Qwen3.5 Omni Flash speed / latency N/A / N/A input / output No data |
GPT-5.4 gpt-5.4 speed / latency No data input / output $0.400/M / $2.40/M | Qwen3.5 Omni Flash qwen3.5-omni-flash-2026-03-15 speed / latency No data input / output $0.050/M / $0.050/M | |
GPT-5.4 gpt-5.4 speed / latency No data input / output $0.685/M / $4.11/M | Qwen3.5 Omni Flash qwen3.5-omni-flash speed / latency No data input / output $0.274/M / $0.274/M | |
GPT-5.4 gpt-5.4 speed / latency No data input / output $1.00/M / $1.00/M | Qwen3.5 Omni Flash qwen3.5-omni-flash speed / latency No data input / output $1.00/M / $1.00/M | |
GPT-5.4 Notion/gpt-5.4 speed / latency No data input / output $1.00/M / $1.00/M | Qwen3.5 Omni Flash qwen3.5-omni-flash-2026-03-15 speed / latency No data input / output $75.00/M / $75.00/M |
This report only uses LMSpeed data for GPT-5.4 and Qwen3.5 Omni Flash: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5.4 | Qwen3.5 Omni Flash |
|---|---|---|
| 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. | Qwen3.5 Omni Flash Qwen3.5 Omni Flash does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. |
TL;DR: GPT-5.4 leads across 69 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5.4 vs Qwen3.5 Omni Flash 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.
