Compare models
Pick up to 4models. Specs render side-by-side. Share the URL — it's stateless.
Comparing agents instead? Switch to agent compare →
 o3OpenAI |  Claude 4.8 OpusAnthropic | GPT-5 OpenAI | Claude 4.5 Haiku Anthropic | |
|---|---|---|---|---|
| Vendor | OpenAI | Anthropic | OpenAI | Anthropic |
| Family | o-series | Claude | GPT | Claude |
| Release date | 2025-04-16 | 2026-05-28 | 2025-08-07 | 2025-10-01 |
| Context window | 200,000 tokens | 1,000,000 tokens | 400,000 tokens | 200,000 tokens |
| Parameters | — | — | — | — |
| Modality | text, vision | text, vision | text, vision, audio | text, vision |
| License | proprietary | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary | proprietary |
| Description | Reasoning-focused model in the o-series. | Anthropic's flagship hybrid-reasoning model — Opus 4.8 pushes coding and AI-agent workflows further (agentic coding 69.2% vs 64.3% on 4.7; multidisciplinary reasoning 57.9% vs 54.7%). 1M-token context, $5/$25 per MTok pricing held flat from Opus 4.7. Introduces Dynamic Workflows for Claude Code (research preview). GA on Anthropic API (`claude-opus-4-8`), AWS Bedrock, Google Vertex, Microsoft Foundry, and GitHub Copilot. | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | Fast, cost-effective Claude model. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | — | — | 85.1% | — |
| GPQA-D | 87.7% | — | 87.3% | — |
| HumanEval | — | — | 95.2% | — |
| Aider | — | — | 85.4% | — |
| AIME-25 | 88.9% | — | 91.0% | — |
| LiveCB | — | — | 74.5% | — |
| MMMU | — | — | 74.1% | — |
Add a model
Claude 4.8 Opus✓
Qwen3.7-Maxmax
Gemini 3.5maxGemini OmnimaxGPT-5.5maxQwen3.6-27Bmax
DeepSeek-V4-FlashmaxDeepSeek-V4-PromaxGemini 3 PromaxClaude 4.7 OpusmaxClaude 4.6 SonnetmaxClaude 4.5 Haiku✓DeepSeek-V3.1maxGPT-5✓
Grok 4maxGemini 2.5 FlashmaxQwen3 235Bmaxo3✓GPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.