OpenAI GPT-5.6 Terra vs Qwen3.8 Max Prime
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- GPT-5.6 Terra is 1.3× cheaper at a typical mix of 3 input tokens per output token.
- Both accept prompts up to 1M tokens.
- Qwen3.8 Max Prime is the newer model (released 2026-09-23).
| GPT-5.6 Terra | Qwen3.8 Max Prime | |
|---|---|---|
| Vendor | OpenAI | Qwen |
| Released | 2026-07-09 | 2026-09-23 |
| Input / 1M | $2.00 | $4.00 |
| Output / 1M | $12.00 | $12.00 |
| Cached input / 1M | $0.20 | $0.50 |
| Blended / 1M (3:1) | $4.50 | $6.00 |
| Context | 1M | 1M |
| Max output | 128K | 131K |
| Accepts | text, image, file | text, image, video |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 7 | 1 |
| Cheapest provider, output | $12.00 | $12.00 |
| Best provider uptime, 24 h | 100% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | Operational | Operational |
Cost calculator
GPT-5.6 Terra
$300 per month$10.00 per day
Qwen3.8 Max Prime
$420 per month$14.00 per day
GPT-5.6 Terra saves $120 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
Compare GPT-5.6 Terra with