Gemini 3 Pro vs Llama 4 405B
Google's flagship. Massive context, native multimodality. Meanwhile, llama 4 405b: open-weights heavyweight. self-host or run anywhere.
Side-by-side
Specs
| Dimension | Gemini 3 Pro | Llama 4 405B |
|---|---|---|
| Provider | Google | Meta |
| Released | 2026-01 | 2025-07 |
| Context window | ✓2M | 256K |
| Output max | ✓64K | 16K |
| Input /M | $3.50 | ✓$2.70 |
| Output /M | $14.00 | ✓$2.70 |
| Modalities | ✓text, image, audio, video | text, image |
| Open weights | no | ✓yes |
Scorecard
Dimension-by-dimension
Gemini 3 Pro
Llama 4 405B
reasoning
9.0
8.0
coding
8.0
8.0
writing
8.0
8.0
speed
7.0
6.0
value
8.0
8.0
Verdict
Which wins, by use case
| Use case | Winner | Why |
|---|---|---|
| coding | Gemini 3 Pro | a coin flip on our weighted coding score |
| writing | Gemini 3 Pro | a coin flip on our weighted writing score |
| chat | Gemini 3 Pro | a coin flip on our weighted chat score |
| agents | Gemini 3 Pro | a coin flip on our weighted agents score |
| summarization | Gemini 3 Pro | a coin flip on our weighted summarization score |
| translation | Gemini 3 Pro | a coin flip on our weighted translation score |
| reasoning | Gemini 3 Pro | a clear edge on our weighted reasoning score |
| research | Gemini 3 Pro | a coin flip on our weighted research score |
| vision and multimodal | Gemini 3 Pro | a coin flip on our weighted vision score |
| Cheapest AI models for bulk workloads | Gemini 3 Pro | a coin flip on our weighted cheap-bulk score |
Bottom line
Our take
Pick Gemini 3 Pro if you need: largest practical context window, native video understanding.
Pick Llama 4 405B if you need: open weights — self-host, no vendor lock-in.
At a 500M-input / 150M-output monthly volume, Gemini 3 Pro costs roughly $3850 vs Llama 4 405B at $1755. Use our calculator to plug in your own numbers.
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