Model comparison
Claude Fable 5 vs Gemma 2 27B
Claude Fable 5 is the stronger model overall, scoring 66.8 to 29.4 on the Noometry Index. Gemma 2 27B costs 31× less per token, which makes it the better buy when Claude Fable 5's lead doesn't matter for your workload.
Last verified . 22 shared benchmarks.
GoogleSummary
- They share 22 benchmarks with published results for both. Claude Fable 5 scores higher in 8 categories and Gemma 2 27B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Fable 5 leads 88.5 to 10.7.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 100% for Claude Fable 5 and 1.4% for Gemma 2 27B.
- Gemma 2 27B is cheaper at $0.65 / $0.65 per million input/output tokens, against $10 / $50 for Claude Fable 5.
- Claude Fable 5 accepts more context: 1M tokens versus 8K.
- Gemma 2 27B has downloadable open weights; the other is API-only.
Side by side
| Claude Fable 5 | Gemma 2 27B | |
|---|---|---|
| Provider | Anthropic | |
| Noometry Index | 66.8 | 29.4 |
| Released | 2026-06-07 | 2024-06-24 |
| Weights | Proprietary | Open |
| Context window | 1M | 8K |
| Max output | 128K | 2K |
| Input $ / M tokens | $10 | $0.65 |
| Output $ / M tokens | $50 | $0.65 |
| Results tracked | 62 | 34 |
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Category by category
Coding Claude Fable 5 leads
Claude Fable 5: 70.6 (#4), Gemma 2 27B: 34.1 (#246)
| Benchmark | Claude Fable 5 | Gemma 2 27B |
|---|---|---|
| LMArena Coding | 1519 | 1211 |
| DeepSWE | 69.9% | — |
| FrontierCode | 53.5% | — |
| LMArena WebDev | 1625 | — |
| FrontierSWE | 47% | — |
| SciCode | 61% | — |
| GSO | 78.4% | — |
| WeirdML | 91.9% | — |
| BigCodeBench Instruct | — | 42.8% |
| LiveBench Coding | — | 36% |
| MirrorCode | 63.9% | — |
| BigCodeBench Complete | — | 52.5% |
| ALE-Bench | 2,041 | — |
Agentic & Tool Use Not comparable
Claude Fable 5: 54.0 (#2), Gemma 2 27B: —
| Benchmark | Claude Fable 5 | Gemma 2 27B |
|---|---|---|
| APEX-Agents | 63.6% | — |
| Remote Labor Index | 16.1% | — |
| τ²-bench Banking | 39.7% | — |
| PostTrainBench | 41.8% | — |
| GBAEval | 74.5% | — |
| GDP.pdf | 30% | — |
| LMArena Search | 1230 | — |
| Vending-Bench 2 | 5,680 | — |
Reasoning Claude Fable 5 leads
Claude Fable 5: 76.8 (#6), Gemma 2 27B: 15.3 (#315)
| Benchmark | Claude Fable 5 | Gemma 2 27B |
|---|---|---|
| LMArena Hard Prompts | 1508 | 1198 |
| DTBench | 98.4% | 48% |
| LMCA | 61.1% | 7.1% |
| Epoch Capabilities Index | 162.06 | 122.08 |
| ARC-AGI-2 | 89.2% | — |
| SimpleBench | 81.9% | — |
| Kagi LLM Benchmark | 91.4% | — |
| NYT Connections (extended) | 92.7% | — |
| ARC-AGI-1 | 98.5% | — |
| CritPt | 28.6% | — |
| Chess Puzzles | 41% | — |
| EnigmaEval | 39.3% | — |
| EBR-Bench | 39.5% | — |
| LiveBench Reasoning | — | 28.1% |
| Mystery Game Puzzles | 52% | — |
| LiveBench Data Analysis | — | 47.9% |
| Surface Evolver Bench | 95% | — |
| Bench to the Future 3 | 0.13 | — |
| LiveBench | — | 38.2% |
Math Claude Fable 5 leads
Claude Fable 5: 88.5 (#5), Gemma 2 27B: 10.7 (#311)
| Benchmark | Claude Fable 5 | Gemma 2 27B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 100% | 1.4% |
| LMArena Math | 1519 | 1212 |
| FrontierMath (Tiers 1-3) | 87% | — |
| FrontierMath Tier 4 | 90.2% | — |
| ProofBench | 95% | — |
| LiveBench Math | — | 26.5% |
| MATH Level 5 | — | 27.9% |
| FrontierMath Erdős | 0% | — |
Knowledge Claude Fable 5 leads
Claude Fable 5: 62.2 (#25), Gemma 2 27B: 19.0 (#280)
| Benchmark | Claude Fable 5 | Gemma 2 27B |
|---|---|---|
| GPQA Diamond | 85.9% | 36.5% |
| LMArena Expert | 1534 | 1172 |
| SimpleQA Verified | 70.7% | — |
| Confabulations | — | 27.1% |
| MMLU | — | 75.7% |
Multimodal Not comparable
Claude Fable 5: 45.3 (#17), Gemma 2 27B: —
| Benchmark | Claude Fable 5 | Gemma 2 27B |
|---|---|---|
| LMArena Vision | 1324 | — |
| Blueprint-Bench 2 | 38.6% | — |
| Furniture Assembly | 35.8% | — |
| LMArena Document | 1496 | — |
Multilingual Claude Fable 5 leads
Claude Fable 5: 57.3 (#9), Gemma 2 27B: 38.6 (#226)
| Benchmark | Claude Fable 5 | Gemma 2 27B |
|---|---|---|
| LMArena Non-English | 1481 | 1217 |
| LMArena Chinese | 1543 | 1221 |
| LMArena French | 1505 | 1247 |
| LMArena German | 1486 | 1209 |
| LMArena Japanese | 1506 | 1175 |
| LMArena Korean | 1488 | 1174 |
| LMArena Russian | 1504 | 1234 |
| LMArena Spanish | 1498 | 1228 |
Instruction Following Claude Fable 5 leads
Claude Fable 5: 78.6 (#8), Gemma 2 27B: 60.5 (#249)
| Benchmark | Claude Fable 5 | Gemma 2 27B |
|---|---|---|
| LMArena Instruction Following | 1502 | 1206 |
| LiveBench Instruction Following | — | 58.1% |
Long Context Claude Fable 5 leads
Claude Fable 5: 46.3 (#23), Gemma 2 27B: 37.3 (#218)
| Benchmark | Claude Fable 5 | Gemma 2 27B |
|---|---|---|
| LMArena Longer Query | 1509 | 1231 |
Writing & Preference Claude Fable 5 leads
Claude Fable 5: 75.9 (#5), Gemma 2 27B: 44.2 (#225)
| Benchmark | Claude Fable 5 | Gemma 2 27B |
|---|---|---|
| LMArena Text | 1491 | 1231 |
| LMArena Creative Writing | 1494 | 1241 |
| LMArena Multi-Turn | 1504 | 1224 |
| EQ-Bench Creative Writing | 1943 | — |
| EQ-Bench 4 | 1340 | — |
| LiveBench Language | — | 32.6% |
Frequently asked questions
Is Claude Fable 5 better than Gemma 2 27B?
Claude Fable 5 is the stronger model overall, scoring 66.8 to 29.4 on the Noometry Index. Gemma 2 27B costs 31× less per token, which makes it the better buy when Claude Fable 5's lead doesn't matter for your workload.
Which is cheaper, Claude Fable 5 or Gemma 2 27B?
Gemma 2 27B is cheaper. It lists at $0.65 per million input tokens and $0.65 per million output tokens; Claude Fable 5 lists at $10 and $50.
Is Claude Fable 5 or Gemma 2 27B better for coding?
Claude Fable 5 scores higher on coding benchmarks: 70.6 versus 34.1 in the Noometry coding category.
Which has the bigger context window?
Claude Fable 5 does, with 1M tokens against 8K.
How many benchmarks do Claude Fable 5 and Gemma 2 27B share?
22 benchmarks have published results for both models. Claude Fable 5 has 62 scored results on Noometry and Gemma 2 27B has 34.