GPT-5.6 Sol vs Laguna XS.2

GPT-5.6 Sol is the better all-round choice, scoring 72/100 against Laguna XS.2 (36). It leads on inputs & features and context window. The score weighs inputs & features 60%, context window 40%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

GPT-5.6 Sol is cheaper at $4.00 input / $20.00 output per million tokens (official OpenAI API price). . At a typical mix of three input tokens to one output token, that is $8.00 per million tokens for GPT-5.6 Sol versus . Laguna XS.2 has no published per-token price.

There is no independent benchmark that covers both models yet. GPT-5.6 Sol has an ECI of 161.8 and Laguna XS.2 has not been scored yet.

There are no published SWE-bench Verified results for GPT-5.6 Sol and Laguna XS.2 yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.

GPT-5.6 Sol has the largest context window at 1,050,000 tokens, against 262,144 for Laguna XS.2. Maximum output per response: GPT-5.6 Sol up to 128,000, Laguna XS.2 up to 32,768 tokens.

GPT-5.6 Sol accepts text, images and PDFs; Laguna XS.2 accepts text. GPT-5.6 Sol handles the widest range of inputs.

Laguna XS.2 publishes its weights and can be self-hosted; GPT-5.6 Sol is proprietary.

GPT-5.6 Sol is the newest, released Jul 9, 2026. Laguna XS.2 came out Apr 28, 2026. Knowledge cutoff: GPT-5.6 Sol Feb 16, 2026.

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.