Claude Fable 5 vs Claude Opus 5

Change models
Claude Opus 5Anthropic
IndexAll categories, out of 100.
74.0 ±2.7 best
73.8 ±1.9
GapIndex points below the top.
Top
−0.2 · no clear gap
CoverageIndex weight that has results.
95%
100% best
SpeedOutput tokens per second.
56/s best
48/s
EloLMArena rating and rank.
1492
1502 best
ReleasedMonth of release.
2026-06
2026-07
Input / 1MUS dollars per 1M input tokens.
$10.00
$5.00 best
Output / 1MUS dollars per 1M output tokens.
$50.00
$25.00 best
Batch output / 1MBatch price per 1M output tokens.
$25.00
$12.50 best
1K chats2K tokens in, 500 out, each.
$45.00
$22.50 best
1K documents20K tokens in, 1K out, each.
$250.00
$125.00 best
1K agent tasks200K tokens in, 20K out, each.
$3,000.00
$1,500.00 best
ContextMaximum tokens in one request.
1M
1M
AgenticMulti-step tasks with tools.
71.4
71.6 best
CodingCode writing and repair.
74.7
74.8 best
ReasoningLogic problems and puzzles.
73.6
75.4 best
MultimodalTasks with images and text.
70.1
72.5 best
KnowledgeFacts and expert knowledge.
75.8 best
73.1
MultilingualTasks in many languages.
—
63.6
InstructionTasks with strict prompt rules.
64.1 best
55.6
MathMath problems.
76.2 best
74.8

Benchmarks

78 shared
Only Claude Fable 5: 14Only Claude Opus 5: 72
Claude Fable 5
Claude Opus 5
55.5% best5 / 222
54.9%7 / 222
82.3% best27 / 217
79.3%52 / 217
85.9%69 / 217
93.9% best14 / 217
28.6%14 / 214
29.1% best13 / 214
99.7% best14 / 200
98.9%22 / 200
92.6%17 / 199
93.2% best11 / 199
65.4% best4 / 164
60.9%7 / 164
88.6% best1 / 149
87.0%7 / 149
TaxEval v2Finance
76.9% best5 / 143
75.1%23 / 143
89.8% best2 / 142
89.0%4 / 142
93.2%10 / 135
93.4% best7 / 135
MMLU ProKnowledge
91.5%3 / 135
91.6% best2 / 135
55.5%18 / 133
61.1% best7 / 133
89.2%11 / 131
90.4% best8 / 131
CorpFin v2Finance
71.8%2 / 131
73.2% best1 / 131
98.5% best1 / 126
97.5%5 / 126
90.4% best4 / 123
88.4%11 / 123
96.4%9 / 122
97.1% best6 / 122
97.6%17 / 116
99.0% best2 / 116
61.0% best6 / 114
56.4%26 / 114