Claude Mythos 5 vs DeepSeek V4.1 Flash 1017
Change modelsClaude Mythos 5Anthropic
IndexAll categories, out of 100.
70.8 ±8.6 best
68.5 ±2.6
GapIndex points below the top.
Top
−2.3 · no clear gap
CoverageIndex weight that has results.
65%
95% best
SpeedOutput tokens per second.
—
261/s
EloLMArena rating and rank.
—
1463
ReleasedMonth of release.
2026-06
2026-10
Input / 1MUS dollars per 1M input tokens.
$10.00
$0.022 best
Output / 1MUS dollars per 1M output tokens.
$50.00
$0.40 best
Batch output / 1MBatch price per 1M output tokens.
—
$0.20
1K chats2K tokens in, 500 out, each.
$45.00
$0.244 best
1K documents20K tokens in, 1K out, each.
$250.00
$0.84 best
1K agent tasks200K tokens in, 20K out, each.
$3,000.00
$12.40 best
ContextMaximum tokens in one request.
1M
1.05M best
AgenticMulti-step tasks with tools.
70.0
72.2 best
CodingCode writing and repair.
74.4 best
69.8
ReasoningLogic problems and puzzles.
—
65.0
MultimodalTasks with images and text.
70.8 best
62.2
KnowledgeFacts and expert knowledge.
74.9 best
64.2
MultilingualTasks in many languages.
—
—
InstructionTasks with strict prompt rules.
—
68.3
MathMath problems.
—
65.4
Benchmarks
4 sharedOnly Claude Mythos 5: 8Only DeepSeek V4.1 Flash 1017: 90
Claude Mythos 5
DeepSeek V4.1 Flash 1017