Data points: 105
The readout for Claude Opus 4.6 and Gemini 3 Flash, before the detailed comparison sheet.
Decision read
Gemini 3 Flash
Gemini 3 Flash currently has the stronger profile, with verified wins split 2 to 3.
Evidence depth
105 data points
Includes 8 benchmark rows, 5 audit samples, and 9 provider examples.
Selection signal
Start with Gemini 3 Flash
The charts below split 22 high-signal samples across speed, scores, and audit health.
Model compare Claude Opus 4.6 vs Gemini 3 Flashclaude-opus-4-6-vs-gemini-3-flash | Model A Claude Opus 4.6 | Model B Gemini 3 Flash |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 2 wins | 3 wins |
| Where it leads | First-token latency, Provider coverage | Cheapest input price, Average speed, Recent tests |
| Model metadata | Claude Opus 4.6 exposes 1M tokens; notable signals: Text input, Image input, File input, Text output. | Gemini 3 Flash exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. |
| Developer | Anthropic | |
| Context window | 1M tokens | 1.0M tokens |
| Max output | 128K tokens | 65.5K tokens |
| Released | Apr 2026 | Dec 2025 |
| Modalities | Input TextImageFile Output Text | Input TextImageFileAudiovideo Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | No data | No data |
| Tokenizer | Claude | Gemini |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | anthropic/claude-opus-4.6-fast | google/gemini-3-flash-preview |
| References | No data | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
| Metric | Claude Opus 4.6 | Gemini 3 Flash |
|---|---|---|
| SciCode | 45.7%#20 | 49.9%#13 |
| Output speed | 44.9 tok/s#96 | 190.4 tok/s#14 |
| Input price | $5.00/M#41 | $0.500/M#18 |
| Output price | $25.00/M#47 | $3.00/M#28 |
| Time to first answer token | 1.44 s#34 | 4.95 s#49 |
| GPQA | 84.0%#38 | 81.2%#52 |
| Blended price | $10.00/M#68 | $1.13/M#42 |
| HLE | 18.6%#43 | 14.1%#55 |
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Claude Opus 4.6 | Gemini 3 Flash |
|---|---|---|
VSLLMWinner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 94 76100100100 | Gemini 3 Flash gemini-3-flash-preview No audit yet |
Yuan APIWinner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 89 56100100100 | Gemini 3 Flash gemini-3-flash No audit yet |
小水管 APIWinner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 84 728480100 | Gemini 3 Flash gemini-3-flash-preview No audit yet |
钠 APIWinner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 80 668470100 | Gemini 3 Flash gemini-3-flash-preview No audit yet |
RenRen APIWinner: Claude Opus 4.6 | Claude Opus 4.6 claude-opus-4-6 Audit score 78 70728088 | Gemini 3 Flash gemini-3-flash No audit yet |
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Claude Opus 4.6 | Gemini 3 Flash |
|---|---|---|
N1N25 tests | Claude Opus 4.6 speed / latency 46 tok/s / 2559ms input / output No data | Gemini 3 Flash speed / latency 157 tok/s / 7994ms input / output No data |
Rnglg2 API25 tests | Claude Opus 4.6 speed / latency 57 tok/s / 3926ms input / output No data | Gemini 3 Flash speed / latency 160 tok/s / 6933ms input / output No data |
钠 API25 tests | Claude Opus 4.6 speed / latency 42 tok/s / 2282ms input / output No data | Gemini 3 Flash speed / latency 171 tok/s / 5615ms input / output No data |
素墨API13 tests | Claude Opus 4.6 speed / latency 47 tok/s / 2344ms input / output No data | Gemini 3 Flash speed / latency 120 tok/s / 10661ms input / output No data |
Hi API10 tests | Claude Opus 4.6 speed / latency N/A / N/A input / output No data | Gemini 3 Flash speed / latency 118 tok/s / 9594ms input / output No data |
Claude Opus 4.6 claude-opus-4.6 speed / latency No data input / output $0/M / $0/M | Gemini 3 Flash gemini-3-flash-preview speed / latency No data input / output $0.070/M / $0.430/M | |
Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0/M / $0/M | Gemini 3 Flash gemini-3-flash-preview speed / latency No data input / output $0/M / $0/M | |
Claude Opus 4.6 c/claude-opus-4-6-thinking speed / latency No data input / output $0.0017/M / $0.0017/M | Gemini 3 Flash gemini-3-flash-preview speed / latency No data input / output $0.500/M / $3.00/M | |
Claude Opus 4.6 claude-opus-4-6 speed / latency No data input / output $0.030/M / $0.030/M | Gemini 3 Flash gemini-3-flash-preview speed / latency No data input / output $0.0030/M / $0.0030/M |
This report only uses LMSpeed data for Claude Opus 4.6 and Gemini 3 Flash: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Claude Opus 4.6 | Gemini 3 Flash |
|---|---|---|
| When to choose each model | Claude Opus 4.6 Claude Opus 4.6 is stronger when you prioritize First-token latency, Provider coverage. | Gemini 3 Flash Gemini 3 Flash is stronger when you prioritize Cheapest input price, Average speed, Recent tests. |
TL;DR: Gemini 3 Flash leads across 105 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Claude Opus 4.6 vs Gemini 3 Flash into nearby model comparisons with enough verified LMSpeed data.
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
