GPT-6.1 Sol vs GPT-6.1 Terra Pro
Detailed technical comparison between GPT-6.1 Sol (OpenAI) and GPT-6.1 Terra Pro (OpenAI). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.
Comparison Snapshot
Tie
Equal CapacityTie
Equal CapabilityTie
Equal SpeedGPT-6.1 Terra Pro
$1.00 / MTokGPT-6.1 Sol
GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. It is suited for agentic coding, computer use, document-heavy professional...
GPT-6.1 Terra Pro
GPT-6.1 Terra Pro is the same underlying model as [GPT-6.1 Terra](https://openrouter.ai/openai/gpt-6.1-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. **Cost note:** pro mode spends far more...
Technical Specifications
🏆 = Superior Spec| Specification | GPT-6.1 Sol | GPT-6.1 Terra Pro |
|---|---|---|
| Provider | OpenAI | OpenAI |
| Context Window | 1,050,000 tokens | 1,050,000 tokens |
| Agent Suitability | Not yet benchmarked | Not yet benchmarked |
| Time to First Token (TTFT) | No public TTFT data | No public TTFT data |
| Deployment Model | managed api | managed api |
| Production Stability | Stable release | Not verified |
| API Available | Yes | Yes |
| Released Date | 2026-09-29 | 2026-10-26 |
API Pricing Comparison
Input Price per Million Tokens
GPT-6.1 Sol
$2.00
GPT-6.1 Terra Pro
$1.00
Output Price per Million Tokens
GPT-6.1 Sol
$10.00
GPT-6.1 Terra Pro
$5.00
💡 Cost Ratio: GPT-6.1 Terra Pro is 2.0x cheaper per input token than GPT-6.1 Sol.
Want to test both models live?
Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Standardized Scores (0–100%)Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.
GPT-6.1 Sol Quirks & Gotchas
No developer gotchas reported.
GPT-6.1 Terra Pro Quirks & Gotchas
No developer gotchas reported.
Explore Other Popular Comparisons
GPT-6.1 Sol vs GLM 5.3 FlashX Legal
Compare context windows, live API token prices, and benchmark scores.
SIDE-BY-SIDE REVIEWGPT-6.1 Sol vs GPT-6.1 Terra
Compare context windows, live API token prices, and benchmark scores.
SIDE-BY-SIDE REVIEWGPT-6.1 Sol vs Kimi K3.1 Pro
Compare context windows, live API token prices, and benchmark scores.
SIDE-BY-SIDE REVIEWGPT-6.1 Sol vs MiniMax M3.1 Flash
Compare context windows, live API token prices, and benchmark scores.
SIDE-BY-SIDE REVIEWGPT-6.1 Sol vs DeepSeek V4.1 Flash 1017
Compare context windows, live API token prices, and benchmark scores.
SIDE-BY-SIDE REVIEWGPT-6.1 Sol vs Mercury 3
Compare context windows, live API token prices, and benchmark scores.