GPT-6 Astra Pro vs Nemotron 3.5 Lightning
Price, context window & benchmark comparison
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Verdict: Nemotron 3.5 Lightning is 181.8× cheaper than GPT-6 Astra Pro on a typical 3:1 input/output mix. GPT-6 Astra Pro has the larger context window (1.1M vs 262K).
| GPT-6 Astra Pro | Nemotron 3.5 Lightning | |
|---|---|---|
| Input price / 1M | $10.00 | $0.08 |
| Output price / 1M | $50.00 | $0.20 |
| Blended price (3:1) | $20.00 | $0.11 |
| Cached input / 1M | $1.00 | $0.04 |
| Context window | 1.1M | 262K |
| Max output | 128K | 131K |
| Intelligence index | — | 12.9 |
| Coding index | — | 26.8 |
| Providers | 5 | 4 |
| Best provider uptime (30m) | 99.9% | 100.0% |
| Vision input | Yes | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-09-04 | 2026-08-11 |
| Retirement | — | — |
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FAQ
Which is cheaper, GPT-6 Astra Pro or Nemotron 3.5 Lightning?
Nemotron 3.5 Lightning is 181.8× cheaper than GPT-6 Astra Pro on a typical 3:1 input/output mix.
GPT-6 Astra Pro vs Nemotron 3.5 Lightning: which has a bigger context window?
GPT-6 Astra Pro: 1,050,000 tokens. Nemotron 3.5 Lightning: 262,144 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: GPT-6 Astra Pro ≈ $45,000, Nemotron 3.5 Lightning ≈ $260.00.
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