Model comparison
GPT-4o vs Inkling
Head-to-head evidence from 9 shared benchmark results across 3 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Verified leaderboard positions: GPT-4o unranked; Inkling #17
BenchAlign evidence: GPT-4o supported; Inkling not scored. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-4o and Inkling share 9 comparable benchmark results. 1 of 8 categories are comparable. 5 results are unique to GPT-4o; 23 to Inkling.
Updated July 16, 2026- Shared results
- 9
- GPT-4o only
- 5
- Inkling only
- 23
- Comparable categories
- 1 / 8
Pick Inkling if you want the stronger benchmark profile. GPT-4o only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
Confidence note. This is a partial-evidence comparison with 9 shared benchmark results across 3 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Inkling is clearly ahead on the provisional aggregate, 72 to 41. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Inkling's sharpest advantage is in mathematics, where it averages 97.1 against 0.3.
GPT-4o is also the more expensive model on tokens at $2.50 input / $10.00 output per 1M tokens, versus $1.87 input / $4.68 output per 1M tokens for Inkling. That is roughly 2.1x on output cost alone. Inkling is the reasoning model in the pair, while GPT-4o is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Inkling gives you the larger context window at 1M, compared with 128K for GPT-4o.
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 | GPT-4o | Δ | Inkling |
|---|---|---|---|
| Math | GPT-4o0.3 | Margin→ 96.8 | Inkling97.1 |
| Agentic | GPT-4oNot measured | MarginNo overlap | Inkling69.4 |
| Coding | GPT-4oNot measured | MarginNo overlap | Inkling68.6 |
| Knowledge | GPT-4oNot measured | MarginNo overlap | Inkling51.7 |
| Multimodal | GPT-4oNot measured | MarginNo overlap | Inkling76.5 |
| Inst. Following | GPT-4oNot measured | MarginNo overlap | Inkling79.8 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | GPT-4o | Inkling | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-4o$2.5 input / $10 output | Inkling$1.87 input / $4.68 output | Inkling has the lower combined listed price. |
| Generation speedtokens per second | GPT-4o131 tok/s | InklingNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | GPT-4o0.81 s | InklingNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | GPT-4o128K | Inkling1M | Inkling lists the larger context window. |
Benchmark Deep Dive
Agentic10 benchmarks
| Benchmark | GPT-4o | Inkling | Result |
|---|---|---|---|
| τ²-bench resultsSource | 25.1% | — | Not comparable |
| Terminal-Bench 2.0Source | — | 63.8% | Not comparable |
| BrowseCompSource | — | 77.1% | Not comparable |
| MCP AtlasSource | — | 74.1% | Not comparable |
| Design Arena Agentic Web DevSource | — | 1258 | Not comparable |
| AA Agentic IndexSource | — | 32.3% | Not comparable |
| GDPval-AASource | — | 36.9% | Not comparable |
| GDPval-AASource | — | 1239 | Not comparable |
| AA BriefcaseSource | — | 836 | Not comparable |
| AA Tau3 BankingSource | — | 23.7% | Not comparable |
Coding6 benchmarks
Reasoning2 benchmarks
Knowledge10 benchmarks
| Benchmark | GPT-4o | Inkling | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 11.2% | 40.7% | Inkling leads |
| AA-GPQA DiamondSource | 54.3% | 87.2% | Inkling leads |
| AA-HLESource | 3.3% | 29.7% | Inkling leads |
| AA-Omniscience IndexSource | -10.7% | 2.1% | Inkling leads |
| AA-Omniscience AccuracySource | 19.7% | 40.0% | Inkling leads |
| AA-Omniscience Hallucination RateSource | 37.9% | 63.1% | GPT-4o leads |
| GPQASource | — | 87.9% | Not comparable |
| GPQA-DSource | — | 87.9% | Not comparable |
| HLESource | — | 46% | Not comparable |
| HLE w/o toolsSource | — | 30% | Not comparable |
MathInkling wins2 benchmarks
Multimodal5 benchmarks
Frequently Asked Questions (2)
Which is better, GPT-4o or Inkling?
Inkling is ahead on BenchLM's provisional leaderboard, 72 to 41.
Which is better for math, GPT-4o or Inkling?
Inkling has the edge for math in this comparison, averaging 97.1 versus 0.3. GPT-4o stays close enough that the answer can still flip depending on your workload.
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