Model comparison
Claude Haiku 5.5 vs Gemini 3.1 Flash Lite
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 40.8 on the Noometry Index.
Last verified . 5 shared benchmarks.
GoogleSummary
- They share 5 benchmarks with published results for both. Claude Haiku 5.5 scores higher in 5 categories and Gemini 3.1 Flash Lite in 0 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 40.7.
- The biggest single-benchmark swing is NYT Connections (extended): 65.7% for Claude Haiku 5.5 and 8.2% for Gemini 3.1 Flash Lite.
- Claude Haiku 5.5 is cheaper at $0.10 / $0.50 per million input/output tokens, against $0.25 / $1.50 for Gemini 3.1 Flash Lite.
- Gemini 3.1 Flash Lite accepts more context: 1.05M tokens versus 1M.
Side by side
| Claude Haiku 5.5 | Gemini 3.1 Flash Lite | |
|---|---|---|
| Provider | Anthropic | |
| Noometry Index | 49.5 | 40.8 |
| Released | 2026-10-07 | 2026-03-03 |
| Weights | Proprietary | Proprietary |
| Context window | 1M | 1.05M |
| Max output | 128K | 66K |
| Input $ / M tokens | $0.10 | $0.25 |
| Output $ / M tokens | $0.50 | $1.50 |
| Results tracked | 9 | 38 |
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Category by category
Coding Claude Haiku 5.5 leads
Claude Haiku 5.5: 49.2 (#50), Gemini 3.1 Flash Lite: 37.8 (#188)
| Benchmark | Claude Haiku 5.5 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena WebDev | 1587 | 1256 |
| SciCode | — | 41.9% |
| WeirdML | — | 52.2% |
| LMArena Coding | — | 1400 |
| ALE-Bench | — | 797.73 |
Agentic & Tool Use Not comparable
Claude Haiku 5.5: —, Gemini 3.1 Flash Lite: 30.2 (#79)
| Benchmark | Claude Haiku 5.5 | Gemini 3.1 Flash Lite |
|---|---|---|
| DeepResearch Bench | — | 37.3% |
Reasoning Claude Haiku 5.5 leads
Claude Haiku 5.5: 35.2 (#69), Gemini 3.1 Flash Lite: 22.9 (#186)
| Benchmark | Claude Haiku 5.5 | Gemini 3.1 Flash Lite |
|---|---|---|
| NYT Connections (extended) | 65.7% | 8.2% |
| Kagi LLM Benchmark | — | 67.2% |
| CritPt | — | 1.1% |
| Chess Puzzles | — | 25% |
| EnigmaEval | — | 3% |
| Thematic Generalization | — | 63.3% |
| LMArena Hard Prompts | — | 1407 |
| Mystery Game Puzzles | 30% | — |
| DTBench | — | 76.8% |
| LMCA | — | 35% |
| Epoch Capabilities Index | — | 144.47 |
| ForecastBench | — | 54.4 |
Math Claude Haiku 5.5 leads
Claude Haiku 5.5: 73.6 (#18), Gemini 3.1 Flash Lite: 40.7 (#90)
| Benchmark | Claude Haiku 5.5 | Gemini 3.1 Flash Lite |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | 27.7% |
| OTIS Mock AIME 2024-2025 | 98.9% | 80% |
| FrontierMath Tier 4 | 46.3% | — |
| LMArena Math | — | 1428 |
Knowledge Claude Haiku 5.5 leads
Claude Haiku 5.5: 50.8 (#70), Gemini 3.1 Flash Lite: 41.9 (#104)
| Benchmark | Claude Haiku 5.5 | Gemini 3.1 Flash Lite |
|---|---|---|
| GPQA Diamond | 89.6% | 81.8% |
| Humanity's Last Exam | — | 8.6% |
| SimpleQA Verified | 23.8% | — |
| Vectara Hallucination Rate | — | 8.2% |
| LMArena Expert | — | 1398 |
Multimodal Claude Haiku 5.5 leads
Claude Haiku 5.5: 43.7 (#21), Gemini 3.1 Flash Lite: 39.4 (#60)
| Benchmark | Claude Haiku 5.5 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Vision | — | 1240 |
| Furniture Assembly | 47.5% | — |
Multilingual Not comparable
Claude Haiku 5.5: —, Gemini 3.1 Flash Lite: 52.3 (#86)
| Benchmark | Claude Haiku 5.5 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Non-English | — | 1411 |
| LMArena Chinese | — | 1461 |
| LMArena French | — | 1424 |
| LMArena German | — | 1429 |
| LMArena Japanese | — | 1413 |
| LMArena Korean | — | 1392 |
| LMArena Russian | — | 1420 |
| LMArena Spanish | — | 1421 |
Instruction Following Not comparable
Claude Haiku 5.5: —, Gemini 3.1 Flash Lite: 72.7 (#131)
| Benchmark | Claude Haiku 5.5 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Instruction Following | — | 1377 |
Long Context Not comparable
Claude Haiku 5.5: —, Gemini 3.1 Flash Lite: 42.5 (#122)
| Benchmark | Claude Haiku 5.5 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Longer Query | — | 1394 |
Writing & Preference Not comparable
Claude Haiku 5.5: —, Gemini 3.1 Flash Lite: 60.9 (#94)
| Benchmark | Claude Haiku 5.5 | Gemini 3.1 Flash Lite |
|---|---|---|
| LMArena Text | — | 1416 |
| LMArena Creative Writing | — | 1401 |
| LMArena Multi-Turn | — | 1417 |
Frequently asked questions
Is Claude Haiku 5.5 better than Gemini 3.1 Flash Lite?
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 40.8 on the Noometry Index.
Which is cheaper, Claude Haiku 5.5 or Gemini 3.1 Flash Lite?
Claude Haiku 5.5 is cheaper. It lists at $0.10 per million input tokens and $0.50 per million output tokens; Gemini 3.1 Flash Lite lists at $0.25 and $1.50.
Is Claude Haiku 5.5 or Gemini 3.1 Flash Lite better for coding?
Claude Haiku 5.5 scores higher on coding benchmarks: 49.2 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 1M.
How many benchmarks do Claude Haiku 5.5 and Gemini 3.1 Flash Lite share?
5 benchmarks have published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and Gemini 3.1 Flash Lite has 38.