LLM Comparison
GPT-5.5 Pro vs Llama 4 Scout
Side-by-side specs, pricing & capabilities · Updated September 2026
Price vs Intelligence
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | 94 0.9 | 10 51.1 |
| Family | GPT | Llama |
| Status | Current | Current |
| Release Date | Apr 2026 | Apr 2025 |
| Context Window | 1.1M tokens | 328K tokens |
| Input Price | $30.00/M tokens | $0.08/M tokens |
| Output Price | $180.00/M tokens | $0.30/M tokens |
| Pricing Notes | No cached input discount. Long context (>272K tokens): 2x input, 1.5x output. Batch API: 50% discount. Regional processing: 10% uplift. | — |
| Capabilities | textvisioncodetool-useextended-thinkingweb-search | textvisioncode |
| Training Cutoff | Dec 01, 2025 | — |
| Max Output | 128K tokens | 16K tokens |
| API Identifier | openai/gpt-5.5-pro | meta-llama/llama-4-scout |
| Benchmarks | ||
| FrontierMath Tier 4 | 39.6openai | — |
| FrontierMath Tier 1-3 | 52.4openai | — |
| HLE (with tools) | 57.2openai | — |
| HLE (no tools) | 43.1openai | — |
| BrowseComp | 90.1openai | — |
| GeneBench | 33.2openai | — |
| GDPval | 82.3openai | — |
| Investment Banking Modeling | 88.6openai | — |
| MMLU | — | 79.6meta |
| MMLU Pro | — | 74.3meta |
| GPQA Diamond | — | 57.2meta |
| MATH | — | 50.3meta |
| LiveCodeBench (10/01/2024-02/01/2025) | — | 32.8meta |
| MMMU | — | 69.4meta |
| MGSM | — | 90.6meta |
| Artificial Analysis Intelligence Index v4.3 | — | 6.4513artificial-analysis |
| SciCode | — | 21.2963artificial-analysis |
| Terminal-Bench 2.1 | — | 3.7453artificial-analysis |
| AIME 2025 | — | 14artificial-analysis |
| View GPT-5.5 Pro | View Llama 4 Scout | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| Llama 4 ScoutCheapest | $0.08 | $0.15 | $0.23 | — |
| GPT-5.5 Pro | $30.00 | $90.00 | $120.00 | +52074% |
OpenAI
GPT-5.5 Pro
GPT-5.5 Pro uses more compute to think harder and provide consistently better answers than GPT-5.5. Designed for the toughest problems, some requests may take several minutes. It excels at FrontierMath Tier 4 (39.6%) and BrowseComp (90.1%), offering the highest intelligence available from OpenAI at a premium price point.
Meta
Llama 4 Scout
Llama 4 Scout is a multimodal llm from Meta. Supports up to 327,680 token context window. Achieves 82.6% on MMLU. Available from $0.08/M input tokens.
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