OpenAI's GPT-5.5 beats Anthropic's Claude Opus 4.8 on benchmarks and cost
GPT-5.5 scores 92.1% on MMLU and costs 33% less per token than its rival.
Deep Dive
An article compares Anthropic's Claude Opus 4.8 and OpenAI's GPT-5.5 on key metrics including benchmarks, price, context length, and other model features.
Key Points
- GPT-5.5 outperforms Claude Opus 4.8 on MMLU (92.1% vs 89.5%) and HumanEval (95% vs 92%)
- GPT-5.5 offers 1M-token context window at $10/M input tokens, while Claude offers 200K at $15/M
- Claude Opus 4.8 prioritizes safety with constitutional AI, making it better for regulated industries
Why It Matters
The race between OpenAI and Anthropic is forcing both to improve performance while slashing prices, benefiting every AI developer.