Ling-2.6-1T vs GPT-5.1
Head-to-head specifications
| Metric | Ling-2.6-1T | GPT-5.1 | Difference |
|---|---|---|---|
| Intelligence Index | 29.0 | 37.0 | -21.6% |
| Context window | 400K tokens | 512K tokens | — |
| Blended price ($/1M tokens) | $0.43 | $0.77 | -44.2% |
| Access | Open weights | Proprietary API | — |
- GPT-5.1 leads overall capability (Intelligence Index 37.0 vs 29.0).
- Ling-2.6-1T is the cheaper model to run at $0.43/1M blended tokens — about 1.8× cheaper.
- GPT-5.1 offers the larger context window (512K tokens), useful for long documents and codebases.
Verdict: Ling-2.6-1T or GPT-5.1?
Ling-2.6-1T advantages
- Affordability (+44%)
GPT-5.1 advantages
- General intelligence (+22%)
- Context window (+22%)
Which should you choose?
- Choose the Ling-2.6-1T if you want the lowest cost per token at scale.
- Choose the GPT-5.1 if you need the strongest overall reasoning and accuracy.
Value for money
Ling-2.6-1T offers more intelligence per dollar (1.4× the Intelligence-Index-per-cost of the alternative), making it the stronger value for high-volume use. It is also open-weight, so self-hosting can reduce costs further at scale.
Ling-2.6-1T vs GPT-5.1: which should you choose?
Ling-2.6-1T — Ant Group text model with an Intelligence Index of 29, a 400K-token context window and a blended price of $0.43/1M tokens (open weights).
GPT-5.1 — OpenAI multimodal model with an Intelligence Index of 37, a 512K-token context window and a blended price of $0.77/1M tokens.
Ling-2.6-1T vs GPT-5.1: GPT-5.1 scores higher on the Intelligence Index. GPT-5.1 leads overall capability (Intelligence Index 37.0 vs 29.0). Ling-2.6-1T is the cheaper model to run at $0.43/1M blended tokens — about 1.8× cheaper.
Capability: intelligence, coding and agentic work
On the composite Intelligence Index the GPT-5.1 scores 37.0 versus 29.0. Composite indices summarize many evaluations, but always test on your own workload before committing.
Context window and speed
The GPT-5.1 accepts up to 512K tokens per request, which sets how much documentation, transcript or code it can reason over at once.
Pricing and access
At blended per-token rates, Ling-2.6-1T is the cheaper model to run ($0.43 vs $0.77 per 1M tokens). Ling-2.6-1T is open weights and GPT-5.1 is proprietary api. Open-weight models can be self-hosted, trading per-call cost for infrastructure you manage; for production also weigh rate limits, throughput and data-residency requirements.
The verdict
Both are credible choices in the ai model comparison space; the specification table above lays out every metric so you can weigh the trade-offs that matter to you. Pick the one whose strengths line up with how you will actually use it.
Frequently asked questions
Is the Ling-2.6-1T better than the GPT-5.1?
GPT-5.1 takes the overall edge, though Ling-2.6-1T wins in specific areas worth weighing. GPT-5.1 leads overall capability (Intelligence Index 37.0 vs 29.0).
What is the main difference between the Ling-2.6-1T and the GPT-5.1?
GPT-5.1 leads overall capability (Intelligence Index 37.0 vs 29.0). Ling-2.6-1T is the cheaper model to run at $0.43/1M blended tokens — about 1.8× cheaper.
Which is better value?
Ling-2.6-1T offers more intelligence per dollar (1.4× the Intelligence-Index-per-cost of the alternative), making it the stronger value for high-volume use. It is also open-weight, so self-hosting can reduce costs further at scale.
Which should I choose?
Choose the Ling-2.6-1T if you want the lowest cost per token at scale. Choose the GPT-5.1 if you need the strongest overall reasoning and accuracy.
Methodology
Large language models are compared on independent leaderboard metrics: an Intelligence Index (a composite of reasoning and knowledge evaluations), Coding and Agentic indices where measured, community arena Elo, maximum context window, a blended API price per million tokens (weighted across cache-hit, input and output rates), and measured output speed in tokens per second. Where a model ships multiple reasoning-effort variants, we report its strongest variant. Benchmarks capture only part of real-world quality, which also depends on tool use, latency, safety and task fit — and this space moves quickly, so figures reflect the leaderboard snapshot on the page date.