Claude Opus 4.7 vs Gemini 3.1 Pro Preview — LLM API Cost Comparison
Compare Claude Opus 4.7 (Anthropic) vs Gemini 3.1 Pro Preview (Google) on cost per million tokens, context window, and monthly spend.
Prices verified 2026-05-23 · Pricing may change — use the calculator for current estimates
- Input
- $5/1M tokens
- Output
- $25/1M tokens
- Context
- 1M tokens
- Released
- 2026-05
Most capable Anthropic model; step-change in agentic coding
- Input
- $2/1M tokens
- Output
- $12/1M tokens
- Context
- 1M tokens
- Released
- 2026-04
Advanced multimodal + agentic capabilities
Monthly Cost by Usage Tier (70% input / 30% output ratio)
| Usage | Claude Opus 4.7 | Gemini 3.1 Pro Preview | Cheaper by |
|---|---|---|---|
| Light (1M tokens) | $11.00 | $5.00 | Gemini 3.1 Pro Preview (55%) |
| Moderate (10M tokens) | $110 | $50.00 | Gemini 3.1 Pro Preview (55%) |
| Heavy (100M tokens) | $1,100 | $500 | Gemini 3.1 Pro Preview (55%) |
| Very Heavy (1B tokens) | $11,000 | $5,000 | Gemini 3.1 Pro Preview (55%) |
Frequently Asked Questions
Which is cheaper — Claude Opus 4.7 or Gemini 3.1 Pro Preview?
For input tokens, Gemini 3.1 Pro Preview is cheaper at $2/1M tokens — 2.5× less than $5/1M. For output tokens, Gemini 3.1 Pro Preview wins at $12/1M vs $25/1M. At heavy workloads (100M tokens/month), the cost difference can be significant.
What is the context window difference between Claude Opus 4.7 and Gemini 3.1 Pro Preview?
Claude Opus 4.7 supports 1,000,000 tokens per request; Gemini 3.1 Pro Preview supports 1,000,000 tokens. Claude Opus 4.7 wins on context length, making it better for long documents, large codebases, or extended conversations without chunking.
When should I choose Claude Opus 4.7 over Gemini 3.1 Pro Preview?
Choose Claude Opus 4.7 (Anthropic) if you prefer Anthropic's ecosystem, tooling, or reliability track record. Most capable Anthropic model; step-change in agentic coding. Choose Gemini 3.1 Pro Preview (Google) if Advanced multimodal + agentic capabilities. the price/performance fits your workload better. Use this calculator to find the break-even point for your exact token volume.
How much does 1 billion tokens cost on Claude Opus 4.7 vs Gemini 3.1 Pro Preview?
At 700M input + 300M output tokens (1B total): Claude Opus 4.7 costs $11000; Gemini 3.1 Pro Preview costs $5000. The difference is $6000/billion tokens at this 70/30 input/output ratio.