token.app › Compare › Gemini 3.8 Flash vs Claude Opus 5
Gemini 3.8 Flash vs Claude Opus 5
Gemini 3.8 Flash is 6.1× cheaper per token on a blended 3:1 basis. Gemini 3.8 Flash accepts the larger context window (1.0M).
Head to head
Blended price uses a 3:1 input:output mix
| Gemini 3.8 Flash | Claude Opus 5 | |
|---|---|---|
| Provider | Anthropic | |
| Input $/1M | $0.825 | $5.00 |
| Output $/1M | $4.13 | $25.00 |
| Blended $/1M | $1.65 | $10.00 |
| Context window | 1.0M | 1M |
| Max output | 66K | 128K |
| Released | Sep 2026 | Jul 2026 |
| Licence | Proprietary | Proprietary |
Choose Gemini 3.8 Flash if…
- Costs less per token — $1.65 vs $10.00 blended
- Larger context window (1.0M)
- Newer model (released Sep 2026)
Choose Claude Opus 5 if…
- No clear advantage on the data we hold.
FAQ
Which is better, Gemini 3.8 Flash or Claude Opus 5?
We do not hold independently-run benchmark scores covering both Gemini 3.8 Flash and Claude Opus 5, so we make no quality claim. Their pricing and specifications are compared on this page.
Is Gemini 3.8 Flash cheaper than Claude Opus 5?
Gemini 3.8 Flash is cheaper: $1.65 versus $10.00 per million tokens blended at 3:1 input:output. Input alone: $0.825 vs $5.00. Output alone: $4.13 vs $25.00.
What context windows do Gemini 3.8 Flash and Claude Opus 5 have?
Gemini 3.8 Flash: 1,048,576 tokens. Claude Opus 5: 1,000,000 tokens.
Who makes Gemini 3.8 Flash and Claude Opus 5?
Gemini 3.8 Flash is made by Google. Claude Opus 5 is made by Anthropic.
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