Compare models
Pick up to 4models. Specs render side-by-side. Share the URL — it's stateless.
Comparing agents instead? Switch to agent compare →
 Gemini 2.5 Pro | Gemini 3.5 |  GPT-5OpenAI | GPT-5.5 OpenAI | |
|---|---|---|---|---|
| Vendor | OpenAI | OpenAI | ||
| Family | Gemini | Gemini | GPT | GPT |
| Release date | 2025-03-25 | 2026-05-20 | 2025-08-07 | 2026-04-23 |
| Context window | 2,000,000 tokens | 2,000,000 tokens | 400,000 tokens | 400,000 tokens |
| Parameters | — | — | — | — |
| Modality | text, vision, audio, video | text, vision, audio, video | text, vision, audio | text, vision, audio |
| License | proprietary | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary | proprietary |
| Description | Predecessor to Gemini 3 Pro. | Google DeepMind's next-gen Gemini — positioned as "frontier intelligence with action". Built for complex agentic workflows. Announced at Google I/O 2026. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | 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. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 84.1% | 88.9% | 85.1% | 87.6% |
| GPQA-D | 84.0% | 91.2% | 87.3% | 89.4% |
| HumanEval | — | — | 95.2% | 96.8% |
| Aider | — | — | 85.4% | 89.7% |
| AIME-25 | — | 96.1% | 91.0% | 94.2% |
| LiveCB | — | — | 74.5% | 78.9% |
| MMMU | 72.4% | 86.0% | 74.1% | 78.4% |
Add a model
Claude 4.8 Opusmax
Qwen3.7-MaxmaxGemini 3.5✓Gemini OmnimaxGPT-5.5✓Qwen3.6-27Bmax
DeepSeek-V4-FlashmaxDeepSeek-V4-PromaxGemini 3 PromaxClaude 4.7 OpusmaxClaude 4.6 SonnetmaxClaude 4.5 HaikumaxDeepSeek-V3.1maxGPT-5✓
Grok 4maxGemini 2.5 FlashmaxQwen3 235Bmaxo3maxGPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 Pro✓DeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.