Model comparison
Claude Opus 4 vs Gemini 3.1 Flash Lite
Claude Opus 4 is the stronger model overall, scoring 43.1 to 40.8 on the Noometry Index. Gemini 3.1 Flash Lite costs 53× less per token, which makes it the better buy when Claude Opus 4's lead doesn't matter for your workload.
Last verified . 31 shared benchmarks.
GoogleSummary
- They share 31 benchmarks with published results for both. Claude Opus 4 scores higher in 7 categories and Gemini 3.1 Flash Lite in 3 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in coding, where Claude Opus 4 leads 47.2 to 37.8.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 64.4% for Claude Opus 4 and 80% for Gemini 3.1 Flash Lite.
- Gemini 3.1 Flash Lite is cheaper at $0.25 / $1.50 per million input/output tokens, against $15 / $75 for Claude Opus 4.
- Gemini 3.1 Flash Lite accepts more context: 1.05M tokens versus 200K.
Side by side
| Claude Opus 4 | Gemini 3.1 Flash Lite | |
|---|---|---|
| Provider | Anthropic | |
| Noometry Index | 43.1 | 40.8 |
| Released | 2025-05-22 | 2026-03-03 |
| Weights | Proprietary | Proprietary |
| Context window | 200K | 1.05M |
| Max output | 32K | 66K |
| Input $ / M tokens | $15 | $0.25 |
| Output $ / M tokens | $75 | $1.50 |
| Results tracked | 56 | 38 |
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Category by category
Coding Claude Opus 4 leads
Claude Opus 4: 47.2 (#62), Gemini 3.1 Flash Lite: 37.8 (#188)
| Benchmark | Claude Opus 4 | Gemini 3.1 Flash Lite |
|---|---|---|
| WeirdML | 43.7% | 52.2% |
| LMArena Coding | 1442 | 1400 |
| SWE-bench Verified | 70.7% | — |
| SWE-bench Verified (bash only) | 67.6% | — |
| Aider Polyglot | 72% | — |
| LMArena WebDev | — | 1256 |
| SciCode | — | 41.9% |
| GSO | 6.9% | — |
| ALE-Bench | — | 797.73 |
| AlgoTune | 1.33 | — |
Agentic & Tool Use Claude Opus 4 leads
Claude Opus 4: 34.8 (#42), Gemini 3.1 Flash Lite: 30.2 (#79)
| Benchmark | Claude Opus 4 | Gemini 3.1 Flash Lite |
|---|---|---|
| DeepResearch Bench | 46.8% | 37.3% |
| Cybench | 38% | — |
| LMArena Search | 1127 | — |
| METR Time Horizons | 63.9% | — |
Reasoning Claude Opus 4 leads
Claude Opus 4: 27.3 (#121), Gemini 3.1 Flash Lite: 22.9 (#186)
| Benchmark | Claude Opus 4 | Gemini 3.1 Flash Lite |
|---|---|---|
| Kagi LLM Benchmark | 74.3% | 67.2% |
| CritPt | 0.3% | 1.1% |
| EnigmaEval | 5.6% | 3% |
| LMArena Hard Prompts | 1399 | 1407 |
| DTBench | 81.6% | 76.8% |
| LMCA | 37.4% | 35% |
| Epoch Capabilities Index | 142.67 | 144.47 |
| ForecastBench | 61.1 | 54.4 |
| ARC-AGI-2 | 8.6% | — |
| SimpleBench | 58.8% | — |
| NYT Connections (extended) | — | 8.2% |
| ARC-AGI-1 | 35.7% | — |
| Chess Puzzles | — | 25% |
| Thematic Generalization | — | 63.3% |
Math Claude Opus 4 leads
Claude Opus 4: 42.0 (#86), Gemini 3.1 Flash Lite: 40.7 (#90)
| Benchmark | Claude Opus 4 | Gemini 3.1 Flash Lite |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 64.4% | 80% |
| LMArena Math | 1390 | 1428 |
| FrontierMath (Tiers 1-3) | — | 27.7% |
| Omni-MATH | 61.6% | — |
| MATH Level 5 | 85% | — |
| FrontierMath (Feb 2025 set) | 4.5% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge Claude Opus 4 leads
Claude Opus 4: 44.0 (#88), Gemini 3.1 Flash Lite: 41.9 (#104)
| Benchmark | Claude Opus 4 | Gemini 3.1 Flash Lite |
|---|---|---|
| GPQA Diamond | 76.3% | 81.8% |
| Humanity's Last Exam | 10.7% | 8.6% |
| Vectara Hallucination Rate | 12% | 8.2% |
| LMArena Expert | 1386 | 1398 |
| MMLU-Pro | 87.5% | — |
| Confabulations | 15.9% | — |
| GPQA (HELM) | 70.8% | — |
Multimodal Gemini 3.1 Flash Lite leads
Claude Opus 4: 31.5 (#106), Gemini 3.1 Flash Lite: 39.4 (#60)
| Benchmark | Claude Opus 4 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Vision | 1192 | 1240 |
| GeoBench | 49% | — |
| VPCT | 38% | — |
Multilingual Gemini 3.1 Flash Lite leads
Claude Opus 4: 48.8 (#138), Gemini 3.1 Flash Lite: 52.3 (#86)
| Benchmark | Claude Opus 4 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Non-English | 1362 | 1411 |
| LMArena Chinese | 1386 | 1461 |
| LMArena French | 1372 | 1424 |
| LMArena German | 1391 | 1429 |
| LMArena Japanese | 1331 | 1413 |
| LMArena Korean | 1321 | 1392 |
| LMArena Russian | 1392 | 1420 |
| LMArena Spanish | 1389 | 1421 |
Instruction Following Claude Opus 4 leads
Claude Opus 4: 77.1 (#28), Gemini 3.1 Flash Lite: 72.7 (#131)
| Benchmark | Claude Opus 4 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Instruction Following | 1406 | 1377 |
| IFEval | 91.8% | — |
Long Context Gemini 3.1 Flash Lite leads
Claude Opus 4: 39.6 (#172), Gemini 3.1 Flash Lite: 42.5 (#122)
| Benchmark | Claude Opus 4 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Longer Query | 1422 | 1394 |
| Fiction.LiveBench | 61.1% | — |
Writing & Preference Too close to call
Claude Opus 4: 61.2 (#89), Gemini 3.1 Flash Lite: 60.9 (#94)
| Benchmark | Claude Opus 4 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Text | 1377 | 1416 |
| LMArena Creative Writing | 1387 | 1401 |
| LMArena Multi-Turn | 1396 | 1417 |
| Short-Story Creative Writing | 83.6% | — |
| EQ-Bench Creative Writing | 1580 | — |
| WildBench | 85.2% | — |
Frequently asked questions
Is Claude Opus 4 better than Gemini 3.1 Flash Lite?
Claude Opus 4 is the stronger model overall, scoring 43.1 to 40.8 on the Noometry Index. Gemini 3.1 Flash Lite costs 53× less per token, which makes it the better buy when Claude Opus 4's lead doesn't matter for your workload.
Which is cheaper, Claude Opus 4 or Gemini 3.1 Flash Lite?
Gemini 3.1 Flash Lite is cheaper. It lists at $0.25 per million input tokens and $1.50 per million output tokens; Claude Opus 4 lists at $15 and $75.
Is Claude Opus 4 or Gemini 3.1 Flash Lite better for coding?
Claude Opus 4 scores higher on coding benchmarks: 47.2 versus 37.8 in the Noometry coding category.
Which has the bigger context window?
Gemini 3.1 Flash Lite does, with 1.05M tokens against 200K.
How many benchmarks do Claude Opus 4 and Gemini 3.1 Flash Lite share?
31 benchmarks have published results for both models. Claude Opus 4 has 56 scored results on Noometry and Gemini 3.1 Flash Lite has 38.