Model comparison
Claude 4 Sonnet vs GPT-4.1 nano
Head-to-head evidence from 13 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Claude 4 Sonnet #158 (Supported); GPT-4.1 nano #161 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Claude 4 Sonnet and GPT-4.1 nano share 13 comparable benchmark results. 0 of 8 categories are comparable. 3 results are unique to Claude 4 Sonnet; 8 to GPT-4.1 nano.
Updated July 23, 2026- Shared results
- 13
- Claude 4 Sonnet only
- 3
- GPT-4.1 nano only
- 8
- Comparable categories
- 0 / 8
Benchmark data for Claude 4 Sonnet and GPT-4.1 nano is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 13 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.
Claude 4 Sonnet is priced at $3.00 input / $15.00 output per 1M tokens, versus $0.10 input / $0.40 output per 1M tokens for GPT-4.1 nano. GPT-4.1 nano has the larger context window at 1M, compared with 200K for Claude 4 Sonnet.
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 Sonnet | Δ | GPT-4.1 nano |
|---|---|---|---|
| Coding | Claude 4 Sonnet72.7 | MarginNo overlap | GPT-4.1 nanoNot measured |
| Knowledge | Claude 4 SonnetNot measured | MarginNo overlap | GPT-4.1 nano50.3 |
| Math | Claude 4 SonnetNot measured | MarginNo overlap | GPT-4.1 nano1.0 |
| Inst. Following | Claude 4 SonnetNot 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 Sonnet | GPT-4.1 nano | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Claude 4 Sonnet$3 input / $15 output | GPT-4.1 nano$0.1 input / $0.4 output | GPT-4.1 nano has the lower combined listed price. |
| Generation speedtokens per second | Claude 4 Sonnet40 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 Sonnet1.33 s | GPT-4.1 nano0.63 s | GPT-4.1 nano reaches the first token sooner. |
| Context windowmaximum listed tokens | Claude 4 Sonnet200K | GPT-4.1 nano1M | GPT-4.1 nano lists the larger context window. |
Benchmark Deep Dive
Agentic6 benchmarks
Coding3 benchmarks
Reasoning2 benchmarks
Knowledge8 benchmarks
| Benchmark | Claude 4 Sonnet | GPT-4.1 nano | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 25.5% | 9.6% | Claude 4 Sonnet leads |
| AA-GPQA DiamondSource | 68.3% | 51.2% | Claude 4 Sonnet leads |
| AA-HLESource | 4.0% | 3.9% | Claude 4 Sonnet leads |
| AA-Omniscience IndexSource | -9.2% | -56.4% | Claude 4 Sonnet leads |
| AA-Omniscience AccuracySource | 22.4% | 13.3% | Claude 4 Sonnet leads |
| AA-Omniscience Hallucination RateSource | 40.8% | 80.4% | Claude 4 Sonnet leads |
| MMLUSource | — | 80.1% | Not comparable |
| GPQASource | — | 50.3% | Not comparable |
Math1 benchmarks
| Benchmark | Claude 4 Sonnet | 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 Sonnet 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 Sonnet and GPT-4.1 nano today?
Claude 4 Sonnet: $3.00 input / $15.00 output per 1M tokens 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.
Related Comparisons
Choose a model with this week’s evidence
Join 2,000+ readers for ranking moves, pricing changes, and the claims that still need proof.
One email each week. Unsubscribe anytime.