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Model comparison

Claude Mythos 5 vs GPT-4 Turbo

Data verified

Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.

No sourced benchmark result is currently shared by both models. This page therefore compares only the available metadata, pricing, and runtime rows; it does not name a quality winner.
83.01/100
Margin
56.3pts
← winning
26.69/100
0 category wins0 category wins

Public leaderboard positions: Claude Mythos 5 #2 (Supported); GPT-4 Turbo #198 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.

Evidence parity. Claude Mythos 5 and GPT-4 Turbo share 0 comparable benchmark results. 0 of 8 categories are comparable. 15 results are unique to Claude Mythos 5; 4 to GPT-4 Turbo.

Updated July 24, 2026
Shared results
0
Claude Mythos 5 only
15
GPT-4 Turbo only
4
Comparable categories
0 / 8

Benchmark data for Claude Mythos 5 and GPT-4 Turbo is coming soon on BenchLM.

Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.

Why this result

BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.

Claude Mythos 5 is priced at $10.00 input / $50.00 output per 1M tokens, versus $10.00 input / $30.00 output per 1M tokens for GPT-4 Turbo. Claude Mythos 5 has the larger context window at 1M+, compared with 128K for GPT-4 Turbo.

Operational comparison

Runtime and commercial metrics are compared only when both models have a complete sourced value.

MetricClaude Mythos 5GPT-4 TurboComparison
Input / output priceUSD per 1M tokensClaude Mythos 5$10 input / $50 outputGPT-4 Turbo$10 input / $30 outputGPT-4 Turbo has the lower combined listed price.
Generation speedtokens per secondClaude Mythos 5Not availableGPT-4 Turbo30 tok/sA complete speed comparison is not available.
First-answer latencyseconds to first tokenClaude Mythos 5Not availableGPT-4 Turbo2.84 sA complete latency comparison is not available.
Context windowmaximum listed tokensClaude Mythos 51M+GPT-4 Turbo128KClaude Mythos 5 lists the larger context window.

Benchmark Deep Dive

Agentic
BenchmarkClaude Mythos 5GPT-4 TurboResult
Terminal-Bench 2.0Source 88%Not comparable
OSWorld-VerifiedSource 85%Not comparable
BrowseCompSource 88%Not comparable
ExploitGymSource 17.5%Not comparable
Coding
BenchmarkClaude Mythos 5GPT-4 TurboResult
SWE-bench VerifiedSource 95.5%Not comparable
SWE-bench ProSource 80.3%Not comparable
Terminal-Bench 2.0Source 88.0%Not comparable
AA Coding IndexSource 21.5%Not comparable
AA-SciCodeSource 31.9%Not comparable
Knowledge
BenchmarkClaude Mythos 5GPT-4 TurboResult
GPQASource 94.1%Not comparable
HLESource 64.5%Not comparable
HLE w/o toolsSource 59%Not comparable
Artificial Analysis Intelligence IndexSource 7.9%Not comparable
AA-HLESource 3.3%Not comparable
Math
BenchmarkClaude Mythos 5GPT-4 TurboResult
USAMO 2026Source 97.6%Not comparable
Multilingual
BenchmarkClaude Mythos 5GPT-4 TurboResult
SWE MultilingualSource 92.2%Not comparable
Multimodal
BenchmarkClaude Mythos 5GPT-4 TurboResult
SWE-bench MultimodalSource 54.9%Not comparable
CharXivSource 93.5%Not comparable
CharXiv w/o toolsSource 88.9%Not comparable
Frequently Asked Questions (3)

Can I compare Claude Mythos 5 and GPT-4 Turbo on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.

Why does this comparison show “coming soon”?

BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.

What data is available for Claude Mythos 5 and GPT-4 Turbo today?

Claude Mythos 5: $10.00 input / $50.00 output per 1M tokens GPT-4 Turbo: $10.00 input / $30.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.

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Last updated: July 24, 2026