Model comparison
Claude 4.1 Opus Thinking vs GPT-4.1 nano
Head-to-head evidence from 9 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Claude 4.1 Opus Thinking #193 (Supported); GPT-4.1 nano #170 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Claude 4.1 Opus Thinking and GPT-4.1 nano share 9 comparable benchmark results. 0 of 8 categories are comparable. 0 results are unique to Claude 4.1 Opus Thinking; 12 to GPT-4.1 nano.
Updated July 24, 2026- Shared results
- 9
- Claude 4.1 Opus Thinking only
- 0
- GPT-4.1 nano only
- 12
- Comparable categories
- 0 / 8
Benchmark data for Claude 4.1 Opus Thinking and GPT-4.1 nano is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 9 shared benchmark results across 6 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.
GPT-4.1 nano has the larger context window at 1M, compared with 200K for Claude 4.1 Opus Thinking.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Claude 4.1 Opus Thinking | Δ | GPT-4.1 nano |
|---|---|---|---|
| Knowledge | Claude 4.1 Opus ThinkingNot measured | MarginNo overlap | GPT-4.1 nano50.3 |
| Math | Claude 4.1 Opus ThinkingNot measured | MarginNo overlap | GPT-4.1 nano1.0 |
| Inst. Following | Claude 4.1 Opus ThinkingNot measured | MarginNo overlap | GPT-4.1 nano83.2 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Claude 4.1 Opus Thinking | GPT-4.1 nano | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Claude 4.1 Opus ThinkingNot available | GPT-4.1 nano$0.1 input / $0.4 output | A complete price comparison is not available. |
| Generation speedtokens per second | Claude 4.1 Opus Thinking29 tok/s | GPT-4.1 nano181 tok/s | GPT-4.1 nano has the higher measured throughput. |
| First-answer latencyseconds to first token | Claude 4.1 Opus Thinking15.00 s | GPT-4.1 nano0.63 s | GPT-4.1 nano reaches the first token sooner. |
| Context windowmaximum listed tokens | Claude 4.1 Opus Thinking200K | GPT-4.1 nano1M | GPT-4.1 nano lists the larger context window. |
Benchmark Deep Dive
Agentic4 benchmarks
Coding2 benchmarks
Reasoning2 benchmarks
Knowledge8 benchmarks
| Benchmark | Claude 4.1 Opus Thinking | GPT-4.1 nano | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 33.7% | 9.6% | Claude 4.1 Opus Thinking leads |
| AA-GPQA DiamondSource | 80.9% | 51.2% | Claude 4.1 Opus Thinking leads |
| AA-HLESource | 11.9% | 3.9% | Claude 4.1 Opus Thinking leads |
| MMLUSource | — | 80.1% | Not comparable |
| GPQASource | — | 50.3% | Not comparable |
| AA-Omniscience IndexSource | — | -56.4% | Not comparable |
| AA-Omniscience AccuracySource | — | 13.3% | Not comparable |
| AA-Omniscience Hallucination RateSource | — | 80.4% | Not comparable |
Math1 benchmarks
| Benchmark | Claude 4.1 Opus Thinking | GPT-4.1 nano | Result |
|---|---|---|---|
| FrontierMath v2 (Tiers 1-3)Source | — | 1.034% | Not comparable |
Multimodal2 benchmarks
Frequently Asked Questions (3)
Can I compare Claude 4.1 Opus Thinking and GPT-4.1 nano 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 4.1 Opus Thinking and GPT-4.1 nano today?
Claude 4.1 Opus Thinking: Pricing unavailable GPT-4.1 nano: $0.10 input / $0.40 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.