Claude Opus 4.8 vs Gemini 3.1 Pro
How Claude Opus 4.8 (Anthropic) and Gemini 3.1 Pro (Google) compare on price, context window and best-fit use case.
In short: Claude Opus 4.8 is best for complex coding agents, long-horizon tasks, and workloads needing top reliability and reasoning, while Gemini 3.1 Pro suits long-document and multimodal workloads, RAG over huge corpora, and Google Cloud-native apps. On price it's $5.00 vs $2.00 (under 200K; $4.00 above) per 1M input tokens; on context, 1M tokens vs 2M tokens.
Verdict
Claude Opus 4.8 is the more capable pick (Bq score 93 vs 92). Choose Gemini 3.1 Pro if budget leads: its input price is $2.00 (under 200K; $4.00 above) per 1M vs $5.00.
| Spec | Claude Opus 4.8 | Gemini 3.1 Pro |
|---|---|---|
| Developer | Anthropic | |
| Context window | 1M tokens | 2M tokens |
| Input price /1M | $5.00 | $2.00 (under 200K; $4.00 above) |
| Output price /1M | $25.00 | $12.00 (under 200K; $18.00 above) |
| Modalities | text, image | text, image, audio, video |
| Best for | Complex coding agents, long-horizon tasks, and workloads needing top reliability and reasoning. | Long-document and multimodal workloads, RAG over huge corpora, and Google Cloud-native apps. |
Claude Opus 4.8
- Best-in-class coding and agentic tasks
- Adaptive reasoning with effort controls
- 1M context at flat rate
- Strong instruction following and safety
Gemini 3.1 Pro
- Largest mainstream context (2M)
- Strong multimodal reasoning
- Native Google ecosystem integration
- Competitive pricing