Gemini 3 Pro vs GPT-5
API pricing, context window and capabilities for Gemini 3 Pro and GPT-5, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.
Verdict
computed from the published numbersGemini 3 Pro wins on intelligence and on context window. GPT-5 wins on price. Benchmark data is unavailable for one or both models.
Price
GPT-5
Terminal-Bench
Not called
Intelligence
Gemini 3 Pro
Context window
Gemini 3 Pro
Key takeaways
who wins on what, from the published numbersGemini 3 Pro wins
- Larger context window (1M vs 410K)
- Supports audio
GPT-5 wins
- Cheaper input ($2.00 vs $1.25 /1M)
- Cheaper output ($12.00 vs $10.00 /1M)
- Higher max output (66K vs 128K)
- More serving providers (2 vs 9)
- Has reasoning mode
- Supports structured output
- Has web search
Cheaper overall
GPT-5
$1.25 + $10.00 /1M
Larger context
Gemini 3 Pro
1M
More providers
GPT-5
9 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower.
| Gemini 3 Pro | GPT-5 | |
|---|---|---|
| Input $/1M | $2.00via Replicate | $1.25via Databricks best |
| Output $/1M | $12.00via Replicate | $10.00via Databricks best |
| Context window | 1M best | 410K |
| Max output | 66K | 128K best |
| Serving providers | 2 | 9 best |
| Date | Released Nov 18, 2025 | Released Aug 7, 2025 |
Benchmarks
Benchmark scores, side by side| Gemini 3 Pro | GPT-5 | |
|---|---|---|
| Intelligence | 28.0 best | 23.0 |
| Terminal-Bench | Not available | 35% |
| GPQA Diamond | 91% best | 85% |
| Output speed | Not available | 102 t/s |
| Latency (TTFT) | Not available | 78.80s |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Gemini 3 Pro
via Replicate
$22
GPT-5
via Databricks
$16
Capabilities
feature support, side by side| Feature | Gemini 3 Pro | GPT-5 |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | — | ✓ |
| Audio | ✓ | — |
| Prompt caching | ✓ | ✓ |
| Structured output | — | ✓ |
| Web search | — | ✓ |
Related comparisons
Frequently asked questions
Which is cheaper, Gemini 3 Pro or GPT-5?
GPT-5 is cheaper for input ($2.00 vs $1.25 per 1M tokens) from Databricks. GPT-5 is cheaper for output ($12.00 vs $10.00 per 1M tokens) from Databricks.
What is the context window difference between Gemini 3 Pro and GPT-5?
Gemini 3 Pro has a 1M-token context window and GPT-5 has 410K tokens, so Gemini 3 Pro can take a larger prompt.
How do Gemini 3 Pro and GPT-5 compare on benchmarks?
On the tracked benchmarks, Gemini 3 Pro leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
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