Claude Opus 4.8 vs Gemini 3.7 Flash
Claude Opus 4.8 (Anthropic) vs Gemini 3.7 Flash (Google), compared on price, context, speed and Arabic support. Both run on thalam through one OpenAI-compatible API, so you can switch between them with a single model id change. At a glance, Gemini 3.7 Flash is the cheaper option and Gemini 3.7 Flash is rated faster.
Specs side by side
| Spec | Claude Opus 4.8 | Gemini 3.7 Flash |
|---|---|---|
| Provider | Anthropic | |
| Type | Text | Text |
| Context window | 1M | 1M |
| Max output | 128K | 64K |
| Input price | $5.00 / 1M | $1.50 / 1M |
| Output price | $25.00 / 1M | $7.50 / 1M |
| Speed | Medium | Fast |
| Arabic support | Strong | Strong |
Which should you choose?
- Anthropic's newest frontier model. Highest capability for complex reasoning, long-form, and agentic tasks
- Lower cost, about 3.3× cheaper ($1.50 / 1M)
- Rated faster (Fast) for latency-sensitive workloads
One OpenAI-compatible endpoint, one bill. Switch between them with a single model id change, pay per use, credits never expire.
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FAQ
What's the difference between Claude Opus 4.8 and Gemini 3.7 Flash?
Gemini 3.7 Flash costs less ($1.50 / 1M vs $5.00 / 1M); Gemini 3.7 Flash is rated faster. Both are available on thalam behind one OpenAI-compatible API.
Is Claude Opus 4.8 or Gemini 3.7 Flash cheaper?
Gemini 3.7 Flash is cheaper on input ($1.50 / 1M vs $5.00 / 1M). On thalam you pay per use, so you can route cheap-by-default and fall back to the other only when needed.
Can I use both Claude Opus 4.8 and Gemini 3.7 Flash with one API key?
Yes. thalam is OpenAI-compatible, so both models are reachable through the same endpoint. Switching between them is a one-line model id change, no code rewrite.