Claude Opus 4.8 vs GPT-5.6 Terra
Claude Opus 4.8 leads in 4 of 8 categories
Arena ELO
Claude Opus 4.8
Cheaper
Claude Opus 4.8
Faster
Tie
Detailed Comparison
| Category | Claude Opus 4.8 | GPT-5.6 Terra |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Context Window | 200K WIN | 128K |
| Input Price ($/1M) | $5 WIN | $10 |
| Output Price ($/1M) | $25 WIN | $30 |
| Arena ELO | 1580 WIN | N/A |
| Coding | N/A | N/A |
| Reasoning | N/A | N/A |
| Speed (tokens/sec) | N/A | N/A |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, Claude Opus 4.8 or GPT-5.6 Terra?
Claude Opus 4.8 is approximately 25% cheaper than GPT-5.6 Terra per million tokens.
Which has a larger context window?
Claude Opus 4.8 supports 200K context, while GPT-5.6 Terra supports 128K.
Is Claude Opus 4.8 or GPT-5.6 Terra open source?
Claude Opus 4.8 is proprietary. GPT-5.6 Terra is proprietary.
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