Model comparison
Claude Haiku 5.5 vs Gemini 2.5 Flash-Lite
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 37.0 on the Noometry Index.
Last verified . 0 shared benchmarks.
GoogleSummary
- The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 38.0.
- Gemini 2.5 Flash-Lite is cheaper at $0.10 / $0.40 per million input/output tokens, against $0.10 / $0.50 for Claude Haiku 5.5.
- Gemini 2.5 Flash-Lite accepts more context: 1.05M tokens versus 1M.
Side by side
| Claude Haiku 5.5 | Gemini 2.5 Flash-Lite | |
|---|---|---|
| Provider | Anthropic | |
| Noometry Index | 49.5 | 37.0 |
| Released | 2026-10-07 | 2025-06-17 |
| Weights | Proprietary | Proprietary |
| Context window | 1M | 1.05M |
| Max output | 128K | 66K |
| Input $ / M tokens | $0.10 | $0.10 |
| Output $ / M tokens | $0.50 | $0.40 |
| Results tracked | 9 | 33 |
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Category by category
Coding Claude Haiku 5.5 leads
Claude Haiku 5.5: 49.2 (#50), Gemini 2.5 Flash-Lite: 38.5 (#173)
| Benchmark | Claude Haiku 5.5 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena WebDev | 1587 | — |
| WeirdML | — | 35.2% |
| LMArena Coding | — | 1373 |
| ALE-Bench | — | 325.9 |
Agentic & Tool Use Not comparable
Claude Haiku 5.5: —, Gemini 2.5 Flash-Lite: 28.0 (#96)
| Benchmark | Claude Haiku 5.5 | Gemini 2.5 Flash-Lite |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 36.9% |
Reasoning Claude Haiku 5.5 leads
Claude Haiku 5.5: 35.2 (#69), Gemini 2.5 Flash-Lite: 22.2 (#205)
| Benchmark | Claude Haiku 5.5 | Gemini 2.5 Flash-Lite |
|---|---|---|
| Kagi LLM Benchmark | — | 40.5% |
| NYT Connections (extended) | 65.7% | — |
| LMArena Hard Prompts | — | 1377 |
| Mystery Game Puzzles | 30% | — |
| DTBench | — | 62.8% |
| LMCA | — | 18.1% |
| Epoch Capabilities Index | — | 133.94 |
Math Claude Haiku 5.5 leads
Claude Haiku 5.5: 73.6 (#18), Gemini 2.5 Flash-Lite: 38.0 (#144)
| Benchmark | Claude Haiku 5.5 | Gemini 2.5 Flash-Lite |
|---|---|---|
| FrontierMath (Tiers 1-3) | 75.1% | — |
| FrontierMath Tier 4 | 46.3% | — |
| OTIS Mock AIME 2024-2025 | 98.9% | — |
| Omni-MATH | — | 48% |
| LMArena Math | — | 1373 |
Knowledge Claude Haiku 5.5 leads
Claude Haiku 5.5: 50.8 (#70), Gemini 2.5 Flash-Lite: 32.5 (#210)
| Benchmark | Claude Haiku 5.5 | Gemini 2.5 Flash-Lite |
|---|---|---|
| GPQA Diamond | 89.6% | — |
| SimpleQA Verified | 23.8% | — |
| MMLU-Pro | — | 53.7% |
| Vectara Hallucination Rate | — | 3.3% |
| GPQA (HELM) | — | 30.9% |
| LMArena Expert | — | 1373 |
Multimodal Claude Haiku 5.5 leads
Claude Haiku 5.5: 43.7 (#21), Gemini 2.5 Flash-Lite: 29.1 (#114)
| Benchmark | Claude Haiku 5.5 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Vision | — | 1198 |
| VPCT | — | 30% |
| Furniture Assembly | 47.5% | — |
Multilingual Not comparable
Claude Haiku 5.5: —, Gemini 2.5 Flash-Lite: 49.3 (#134)
| Benchmark | Claude Haiku 5.5 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Non-English | — | 1369 |
| LMArena Chinese | — | 1404 |
| LMArena French | — | 1388 |
| LMArena German | — | 1389 |
| LMArena Japanese | — | 1359 |
| LMArena Korean | — | 1360 |
| LMArena Russian | — | 1373 |
| LMArena Spanish | — | 1396 |
Instruction Following Not comparable
Claude Haiku 5.5: —, Gemini 2.5 Flash-Lite: 70.0 (#168)
| Benchmark | Claude Haiku 5.5 | Gemini 2.5 Flash-Lite |
|---|---|---|
| IFEval | — | 81% |
| LMArena Instruction Following | — | 1367 |
Long Context Not comparable
Claude Haiku 5.5: —, Gemini 2.5 Flash-Lite: 33.3 (#262)
| Benchmark | Claude Haiku 5.5 | Gemini 2.5 Flash-Lite |
|---|---|---|
| Fiction.LiveBench | — | 47.2% |
| LMArena Longer Query | — | 1373 |
Writing & Preference Not comparable
Claude Haiku 5.5: —, Gemini 2.5 Flash-Lite: 56.8 (#135)
| Benchmark | Claude Haiku 5.5 | Gemini 2.5 Flash-Lite |
|---|---|---|
| LMArena Text | — | 1379 |
| LMArena Creative Writing | — | 1367 |
| WildBench | — | 81.8% |
| LMArena Multi-Turn | — | 1366 |
Frequently asked questions
Is Claude Haiku 5.5 better than Gemini 2.5 Flash-Lite?
Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 37.0 on the Noometry Index.
Which is cheaper, Claude Haiku 5.5 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 Haiku 5.5 lists at $0.10 and $0.50.
Is Claude Haiku 5.5 or Gemini 2.5 Flash-Lite better for coding?
Claude Haiku 5.5 scores higher on coding benchmarks: 49.2 versus 38.5 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 Haiku 5.5 and Gemini 2.5 Flash-Lite share?
0 benchmarks have published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and Gemini 2.5 Flash-Lite has 33.