GPT-5.5by OpenAI
2026-04-23
openai/gpt-5.5
Default frontier GPT for coding, computer use, research, and knowledge work
- Context
- 1.05M
- Input
- $5/M
- Output
- $30/M
Model catalog
Compare AI models
Filter 6 source-linked models by creator, price, context, modality, and published benchmark coverage.
Ranked by raw score for GDPval - . Versions are kept separate, and incompatible results are never combined.
GPT-5.4by OpenAI
2026-03-05
openai/gpt-5.4
Agent-ready GPT for coding and computer-use workflows at a lower cost
- Context
- 1.05M
- Input
- $2.5/M
- Output
- $15/M
GPT-5.5 Proby OpenAI
2026-04-23
openai/gpt-5.5-pro
Highest-accuracy GPT-5.5 tier for slower, precision-heavy reasoning and coding
- Context
- 1.05M
- Input
- $30/M
- Output
- $180/M
GPT-5.4 Proby OpenAI
2026-03-05
openai/gpt-5.4-pro
More exact GPT-5.4 tier for demanding professional reasoning and agent tasks
- Context
- 1.05M
- Input
- $30/M
- Output
- $180/M
Nemotron 3 Ultra 550B A55Bby NVIDIA
2026-06-04
nvidia/nemotron-3-ultra-550b-a55b
Largest Nemotron 3 model for maximum open-weight reasoning and agent accuracy
- Context
- 1M
- Input
- $0.5/M
- Output
- $2.5/M
Step 3.7 Flashby StepFun
2026-05-29
stepfun/step-3.7-flash
Newer StepFun flash model for faster agents, coding, and multimodal prompts
- Context
- 256K
- Input
- $0.185/M
- Output
- $1.11/M
| Model | Creator | Raw benchmark score | Input types | Context | Input / Output | Released | Compare |
|---|---|---|---|---|---|---|---|
| GPT-5.5openai/gpt-5.5 | OpenAI |
84.9 | 1.05M | $5 / $30 | 2026-04-23 | ||
| GPT-5.4openai/gpt-5.4 | OpenAI |
83.0 | 1.05M | $2.5 / $15 | 2026-03-05 | ||
| GPT-5.5 Proopenai/gpt-5.5-pro | OpenAI |
82.3 | 1.05M | $30 / $180 | 2026-04-23 | ||
| GPT-5.4 Proopenai/gpt-5.4-pro | OpenAI |
82.0 | 1.05M | $30 / $180 | 2026-03-05 | ||
| Nemotron 3 Ultra 550B A55Bnvidia/nemotron-3-ultra-550b-a55b | NVIDIA |
46.7 | 1M | $0.5 / $2.5 | 2026-06-04 | ||
| Step 3.7 Flashstepfun/step-3.7-flash | 45.8 | 256K | $0.185 / $1.11 | 2026-05-29 |