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 GPT-5.5OpenAI |  Claude 4.8 OpusAnthropic | o3 OpenAI |  Qwen3 235BAlibaba | |
|---|---|---|---|---|
| Vendor | OpenAI | Anthropic | OpenAI | Alibaba |
| Family | GPT | Claude | o-series | Qwen |
| Release date | 2026-04-23 | 2026-05-28 | 2025-04-16 | 2025-04-29 |
| Context window | 400,000 tokens | 1,000,000 tokens | 200,000 tokens | 128,000 tokens |
| Parameters | — | — | — | 235B |
| Modality | text, vision, audio | text, vision | text, vision | text |
| License | proprietary | proprietary | proprietary | Apache-2.0 |
| Source | proprietary | proprietary | 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. | 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. | Reasoning-focused model in the o-series. | Predecessor to the Qwen3.6 family. |
| Links | ||||
| Benchmarks | ||||
| MMLU-Pro | 87.6% | — | — | — |
| GPQA-D | 89.4% | — | 87.7% | — |
| HumanEval | 96.8% | — | — | — |
| Aider | 89.7% | — | — | — |
| AIME-25 | 94.2% | — | 88.9% | — |
| LiveCB | 78.9% | — | — | — |
| MMMU | 78.4% | — | — | — |
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Claude 4.8 Opus✓Qwen3.7-Maxmax
Gemini 3.5maxGemini OmnimaxGPT-5.5✓Qwen3.6-27Bmax
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Grok 4maxGemini 2.5 FlashmaxQwen3 235B✓o3✓GPT-4.1max
Llama 4 ScoutmaxLlama 4 MaverickmaxGemini 2.5 PromaxDeepSeek-R1max
Mistral Large 2maxMax 4 models. Remove one to add another.