← All Comparisons
Claude Opus 4.6 vs Gemini 3 Flash
A detailed comparison of Claude Opus 4.6 (Anthropic) and Gemini 3 Flash (Google) across pricing, performance, and features.
Pricing Comparison
| Metric | Claude Opus 4.6 | Gemini 3 Flash | Difference |
|---|---|---|---|
| Input / 1M tokens | $5.00 | $0.50 | -90% |
| Output / 1M tokens | $25.00 | $3.00 | -88% |
| Context window | 200K | 1M | — |
| Max output | 32K | 65.536K | — |
Benchmark Comparison
| Benchmark | Claude Opus 4.6 | Gemini 3 Flash |
|---|---|---|
| MMLU-Pro | 89.5% | 78% |
| HumanEval | 95% | 90% |
| GPQA | 75.5% | — |
Capabilities
| Capability | Claude Opus 4.6 | Gemini 3 Flash |
|---|---|---|
| code | ✓ | ✓ |
| reasoning | ✓ | ✓ |
| text | ✓ | ✓ |
| tool-use | ✓ | ✓ |
| vision | ✓ | ✓ |
Claude Opus 4.6 Strengths
- ✓Best-in-class agentic tool use and coding
- ✓1M context available in beta (Tier 4)
- ✓Strong at following complex multi-step instructions
Claude Opus 4.6 Weaknesses
- ✗Premium pricing ($10/$37.50 at 1M context)
- ✗1M context beta is Tier 4 only
Gemini 3 Flash Strengths
- ✓1M context at budget pricing
- ✓Very fast
- ✓Free tier available via Google AI Studio
Gemini 3 Flash Weaknesses
- ✗Less capable than Pro on complex reasoning
- ✗Audio input priced separately ($1/1M)
Quick Verdict
Best value: Gemini 3 Flash is the more affordable option at $0.5/$3 per 1M tokens.
Higher benchmarks: Claude Opus 4.6 scores higher on average across available benchmarks (86.7% avg).
Larger context: Gemini 3 Flash supports 1M tokens.
Choose Gemini 3 Flash if cost matters most. Choose Claude Opus 4.6 if you need the best possible quality for complex tasks.