GPT-5.5 Low
| Released | 2026-04-23 |
|---|---|
| Price per 1M | $5.00 in · $30.00 out |
| Overall score | 54.4 · rank 206 |
| Context window | 1,050,000 tokens |
| Provider | OpenAI |
| Weights | Proprietary |
| Configuration | Low |
Scores
| Dimension | Score | Rank | Benchmarks |
|---|---|---|---|
| Overall: Balanced | 54.4 | 206 | 10 |
| Overall: Coding | 54.7 | 194 | 9 |
| Overall: Reasoning | 55.0 | 190 | 7 |
| Overall: Agentic work | 54.0 | 219 | 9 |
| Overall: Frontend | 54.9 | 159 | 2 |
| Coding | 54.9 | 181 | 2 |
| Agents | 52.7 | 177 | 1 |
| Reasoning | 57.4 | 167 | 6 |
| Math | 52.0 | 160 | 1 |
| Value vs price | −2.7 | 281 |
Evidence
Coding 54.9 ±1.7
Agents 52.7 ±6.1
| Benchmark | Result | Source | Date |
|---|---|---|---|
| DeepResearch Bench | 48.7% | Epoch AI | 2026-11-11 |
Reasoning 57.4 ±2.0
| Benchmark | Result | Source | Date |
|---|---|---|---|
| ARC-AGI-2 | 33.3% | Epoch AI | 2026-11-11 |
| GPQA Diamond | 90.7% | Epoch AI | 2026-05-05 |
| ARC-AGI-2 (ARC Prize verified) | 33.3% | ARC Prize | 2026-11-11 |
| CritPt | 8.0% | Epoch AI | 2026-11-11 |
| ARC-AGI-1 (ARC Prize verified) | 76.2% | ARC Prize | 2026-11-11 |
| ARC-AGI-1 | 76.2% | Epoch AI | 2026-11-11 |
| Chess Puzzles | 30.0% | Epoch AI | 2026-10-13 |
| Mystery Game Puzzles | 28.0% | Epoch AI | 2026-08-28 |
Math 52.0 ±3.6
| Benchmark | Result | Source | Date |
|---|---|---|---|
| OTIS Mock AIME 2024-2025 | 84.4% | Epoch AI | 2026-08-07 |
Names matched to this model
gpt-5-5-low