Output tokens cost $15.00 per million on GPT 5.6 Sol Disc and $6.00 per million on Grok 4.5. Input tokens cost $2.50 per million on GPT 5.6 Sol Disc and $2.00 per million on Grok 4.5. Cached input tokens are billed at $2.50 per million on GPT 5.6 Sol Disc and $0.50 per million on Grok 4.5. Discounted rates are shown where a promotion is active. Context lengths are 1,050,000 tokens on GPT 5.6 Sol Disc and 500,000 tokens on Grok 4.5. Time to first token (TTFT) measured on AIHubMix is 1.4s on GPT 5.6 Sol Disc and 2.1s on Grok 4.5. Measured output throughput is 30.2 tok/s on GPT 5.6 Sol Disc and 34.1 tok/s on Grok 4.5.
GPT 5.6 Sol Disc
Grok 4.5GPT-5.6 Sol (limited-time 50% off) is OpenAI’s frontier reasoning model for complex coding, professional knowledge work, deep research, and long-running agents. It supports a roughly 1.05M-token context window, image understanding, and extensive tool use. Compared with Terra and Luna, Sol prioritizes capability and reliability on demanding tasks.
Grok 4.5 was trained on datasets spanning knowledge in coding, science, engineering, and math. With both intelligent and efficient reasoning, Grok 4.5 excels at real engineering tasks and exceeds comparable leading models at these tasks.
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Promotional prices show the discounted rate; see each model page for promotion windows.
Daily traffic served through AIHubMix — how demand for each model is trending.
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
Estimate your monthly bill for the same workload on each model.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
Grok 4.5: $6.00/M output tokens; GPT 5.6 Sol Disc: $15.00/M. Use the cost calculator above to estimate your own workload.
GPT 5.6 Sol Disc: 1.4s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
GPT 5.6 Sol Disc accepts 1,050,000 and Grok 4.5 accepts 500,000 input tokens. Maximum output per request is 128,000 tokens on GPT 5.6 Sol Disc and 500,000 tokens on Grok 4.5.
Grok 4.5 at 34.1 tok/s and GPT 5.6 Sol Disc at 30.2 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
GPT 5.6 Sol Disc accepts text and image input and supports tool calling, thinking and structured outputs; Grok 4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context.
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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