Gemini 3.1 Flash-Lite vs Grok 4.3
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Gemini 3.1 Flash-Lite
Google · Mar 2026
The cheapest Gemini 3 model: multimodal input and a 1M context for $0.25/$1.50 — built for massive-scale pipelines.
Grok 4.3
xAI · Apr 2026
xAI's frontier model: 1M context at $1.25/$2.50, ~168 tokens/sec, and a record low hallucination rate on independent testing.
The verdict
These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. Gemini 3.1 Flash-Lite is about 2.8x cheaper per blended million tokens (3:1 input:output mix).
Specs & pricing
| Gemini 3.1 Flash-Lite | Grok 4.3 | |
|---|---|---|
| modhub Index | — | — |
| Input price / 1M | $0.25 | $1.25 |
| Output price / 1M | $1.5 | $2.5 |
| Context window | 1M | 1M |
| Max output | 66K | — |
| Open weights | no | no |
| Reasoning model | no | yes |
| Multimodal input | text, image, audio, video | text, image |
| Knowledge cutoff | Nov 2025 | Mar 2026 |
| Released | Mar 2026 | Apr 2026 |
| Example monthly cost* | $4.75 | $16.25 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, Gemini 3.1 Flash-Lite or Grok 4.3?
- These two models don't yet share verified results on the benchmarks we track, so judge them on specs, pricing and intended use. Gemini 3.1 Flash-Lite is about 2.8x cheaper per blended million tokens (3:1 input:output mix).
- Which is cheaper, Gemini 3.1 Flash-Lite or Grok 4.3?
- Gemini 3.1 Flash-Lite costs $0.25/$1.5 per million input/output tokens, while Grok 4.3 costs $1.25/$2.5. For a typical workload of 10M input and 1.5M output tokens per month, that's $4.75 versus $16.25.
- Which model is better for coding, Gemini 3.1 Flash-Lite or Grok 4.3?
- We don't yet track SWE-bench Verified results for both models; check their individual pages for coding-related scores.
More comparisons
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