# Claude Opus 4.8 vs Gemini 2.5 Flash-Lite

> Claude Opus 4.8 is the stronger model overall, scoring 60.7 to 36.4 on the Noometry Index. Gemini 2.5 Flash-Lite costs 57× less per token, which makes it the better buy when Claude Opus 4.8's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/claude-opus-4-8-vs-gemini-2-5-flash-lite
- Last updated: 2026-10-10
- Shared benchmarks: 24

## Summary

- They share 24 benchmarks with published results for both. Claude Opus 4.8 scores higher in 10 categories and Gemini 2.5 Flash-Lite in 0 categories; 10 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude Opus 4.8 leads 64.6 to 21.5.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 88.8% for Claude Opus 4.8 and 40.5% for Gemini 2.5 Flash-Lite.
- Gemini 2.5 Flash-Lite is cheaper at $0.10 / $0.40 per million input/output tokens, against $5 / $25 for Claude Opus 4.8.
- Gemini 2.5 Flash-Lite accepts more context: 1.05M tokens versus 1M.

## Snapshot

| | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| Provider | Anthropic | Google |
| Noometry Index | 60.7 | 36.4 |
| Rank | 9 | 208 |
| Context | 1M | 1.05M |
| Input $/M | $5 | $0.10 |
| Output $/M | $25 | $0.40 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Opus 4.8: 60.2 (#9)
- Gemini 2.5 Flash-Lite: 38.0 (#167)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| WeirdML | 82.9% | 35.2% |
| LMArena Coding | 1491 | 1373 |
| ALE-Bench | 1,564 | 325.9 |
| DeepSWE | 59% | — |
| FrontierCode | 46.5% | — |
| LMArena WebDev | 1556 | — |
| SciCode | 53.5% | — |
| GSO | 47.1% | — |

## Agentic & Tool Use

- Claude Opus 4.8: 47.6 (#10)
- Gemini 2.5 Flash-Lite: 27.8 (#89)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| APEX-Agents | 48.9% | — |
| Berkeley Function Calling Leaderboard | — | 36.9% |
| OSWorld 2.0 | 20.6% | — |
| Remote Labor Index | 8.3% | — |
| τ²-bench Banking | 39.7% | — |
| DeepResearch Bench | 50.2% | — |
| PostTrainBench | 33.8% | — |
| GBAEval | 70.9% | — |
| GDP.pdf | 24% | — |
| LMArena Search | 1204 | — |
| Vending-Bench 2 | 5,787 | — |

## Reasoning

- Claude Opus 4.8: 64.6 (#14)
- Gemini 2.5 Flash-Lite: 21.5 (#196)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| Kagi LLM Benchmark | 88.8% | 40.5% |
| LMArena Hard Prompts | 1481 | 1377 |
| DTBench | 94.9% | 62.8% |
| LMCA | 57.5% | 18.1% |
| Epoch Capabilities Index | 158.3 | 133.93 |
| ARC-AGI-2 | 72.1% | — |
| SimpleBench | 64.8% | — |
| NYT Connections (extended) | 91.1% | — |
| ARC-AGI-1 | 92.5% | — |
| CritPt | 20.9% | — |
| Chess Puzzles | 34% | — |
| EnigmaEval | 23.5% | — |
| EBR-Bench | 28.6% | — |
| Mystery Game Puzzles | 36% | — |
| Surface Evolver Bench | 87.5% | — |
| Bench to the Future 3 | 0.14 | — |
| ForecastBench | 59.9 | — |

## Math

- Claude Opus 4.8: 78.2 (#11)
- Gemini 2.5 Flash-Lite: 35.5 (#144)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Math | 1487 | 1373 |
| FrontierMath (Tiers 1-3) | 80% | — |
| FrontierMath Tier 4 | 56.1% | — |
| MathArena Final-Answer Competitions | 91.8% | — |
| OTIS Mock AIME 2024-2025 | 98.3% | — |
| ProofBench | 69% | — |
| Omni-MATH | — | 48% |
| FrontierMath (Feb 2025 set) | 47.2% | — |
| FrontierMath Tier 4 (v1) | 31.3% | — |

## Knowledge

- Claude Opus 4.8: 61.3 (#26)
- Gemini 2.5 Flash-Lite: 32.1 (#206)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Expert | 1501 | 1373 |
| GPQA Diamond | 91% | — |
| SimpleQA Verified | 53% | — |
| MMLU-Pro | — | 53.7% |
| Vectara Hallucination Rate | — | 3.3% |
| GPQA (HELM) | — | 30.9% |

## Multimodal

- Claude Opus 4.8: 43.2 (#20)
- Gemini 2.5 Flash-Lite: 28.6 (#109)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Vision | 1295 | 1198 |
| VPCT | — | 30% |
| Blueprint-Bench 2 | 14.5% | — |
| Furniture Assembly | 42.5% | — |
| LMArena Document | 1475 | — |

## Multilingual

- Claude Opus 4.8: 55.4 (#31)
- Gemini 2.5 Flash-Lite: 49.5 (#129)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Non-English | 1450 | 1369 |
| LMArena Chinese | 1509 | 1404 |
| LMArena French | 1482 | 1388 |
| LMArena German | 1470 | 1390 |
| LMArena Japanese | 1440 | 1359 |
| LMArena Korean | 1432 | 1358 |
| LMArena Russian | 1476 | 1373 |
| LMArena Spanish | 1470 | 1396 |

## Instruction Following

- Claude Opus 4.8: 77.6 (#22)
- Gemini 2.5 Flash-Lite: 70.2 (#163)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Instruction Following | 1476 | 1366 |
| IFEval | — | 81% |

## Long Context

- Claude Opus 4.8: 45.4 (#37)
- Gemini 2.5 Flash-Lite: 33.3 (#257)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Longer Query | 1482 | 1373 |
| Fiction.LiveBench | — | 47.2% |

## Writing & Preference

- Claude Opus 4.8: 72.1 (#17)
- Gemini 2.5 Flash-Lite: 57.0 (#130)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Text | 1460 | 1379 |
| LMArena Creative Writing | 1453 | 1366 |
| LMArena Multi-Turn | 1476 | 1367 |
| EQ-Bench Creative Writing | 1840 | — |
| WildBench | — | 81.8% |
| EQ-Bench 4 | 1281 | — |

## FAQ

### Is Claude Opus 4.8 better than Gemini 2.5 Flash-Lite?

Claude Opus 4.8 is the stronger model overall, scoring 60.7 to 36.4 on the Noometry Index. Gemini 2.5 Flash-Lite costs 57× less per token, which makes it the better buy when Claude Opus 4.8's lead doesn't matter for your workload.

### Which is cheaper, Claude Opus 4.8 or Gemini 2.5 Flash-Lite?

Gemini 2.5 Flash-Lite is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; Claude Opus 4.8 lists at $5 and $25.

### Is Claude Opus 4.8 or Gemini 2.5 Flash-Lite better for coding?

Claude Opus 4.8 scores higher on coding benchmarks: 60.2 versus 38.0 in the Noometry coding category.

### Which has the bigger context window?

Gemini 2.5 Flash-Lite does, with 1.05M tokens against 1M.

### How many benchmarks do Claude Opus 4.8 and Gemini 2.5 Flash-Lite share?

24 benchmarks have published results for both models. Claude Opus 4.8 has 65 scored results on Noometry and Gemini 2.5 Flash-Lite has 33.