Compare models
Pick up to 4models. Specs render side-by-side. Share the URL — it's stateless.
 GPT-5.5OpenAI |  DeepSeek-V4-FlashDeepSeek |  Gemini 3 Pro | DeepSeek-V3.1 DeepSeek | |
|---|---|---|---|---|
| Vendor | OpenAI | DeepSeek | DeepSeek | |
| Family | GPT | DeepSeek | Gemini | DeepSeek |
| Release date | 2026-04-23 | 2026-04-22 | 2026-04-22 | 2025-08-21 |
| Context window | 400,000 tokens | 1,000,000 tokens | 2,000,000 tokens | 128,000 tokens |
| Parameters | — | 284B (13B active) | — | 671B |
| Modality | text, vision, audio | text | text, vision, audio, video | text |
| License | proprietary | MIT | proprietary | MIT |
| Source | proprietary | open weights | proprietary | open weights |
| Description | OpenAI's smartest and most intuitive model — successor to GPT-5, with major coding, research, and document workflow gains. GPT-5.5 Pro variant also available for heavier reasoning. | Smaller, faster sibling to DeepSeek-V4-Pro. Same 1M context window with a much lighter 284B / 13B-active MoE. | Google DeepMind's flagship multimodal model. Best-in-class for multimodal understanding and agentic / vibe coding workflows. A "Deep Think" reasoning mode is available to AI Ultra subscribers. | Large MoE open-weight model. Predecessor to DeepSeek-V4. |
| Links |
Add a model
Gemini 2.5 Flashmax
Claude 4.6 SonnetmaxGPT-5.5✓DeepSeek-V4-Flash✓
Qwen3.6-27BmaxGemini 3 Pro✓DeepSeek-V4-PromaxClaude 4.7 OpusmaxClaude 4.5 HaikumaxDeepSeek-V3.1✓GPT-5max
Grok 4maxQwen3 235Bmaxo3maxGPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.