Model comparison
GPT-OSS 20B vs Inkling
Head-to-head evidence from 13 shared benchmark results across 4 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Verified leaderboard positions: GPT-OSS 20B unranked; Inkling #17
BenchAlign evidence: GPT-OSS 20B supported; Inkling not scored. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. GPT-OSS 20B and Inkling share 13 comparable benchmark results. 0 of 8 categories are comparable. 6 results are unique to GPT-OSS 20B; 19 to Inkling.
Updated July 16, 2026- Shared results
- 13
- GPT-OSS 20B only
- 6
- Inkling only
- 19
- Comparable categories
- 0 / 8
Benchmark data for GPT-OSS 20B and Inkling is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 13 shared benchmark results across 4 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.
Inkling is priced at $1.87 input / $4.68 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for GPT-OSS 20B. Inkling has the larger context window at 1M, compared with 128K for GPT-OSS 20B.
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-OSS 20B | Δ | Inkling |
|---|---|---|---|
| Agentic | GPT-OSS 20BNot measured | MarginNo overlap | Inkling69.4 |
| Coding | GPT-OSS 20BNot measured | MarginNo overlap | Inkling68.6 |
| Knowledge | GPT-OSS 20BNot measured | MarginNo overlap | Inkling51.7 |
| Math | GPT-OSS 20BNot measured | MarginNo overlap | Inkling97.1 |
| Multimodal | GPT-OSS 20BNot measured | MarginNo overlap | Inkling76.5 |
| Inst. Following | GPT-OSS 20BNot measured | MarginNo overlap | Inkling79.8 |
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | GPT-OSS 20B | Inkling | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | GPT-OSS 20B$0 input / $0 output | Inkling$1.87 input / $4.68 output | GPT-OSS 20B has the lower combined listed price. |
| Generation speedtokens per second | GPT-OSS 20B313 tok/s | InklingNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | GPT-OSS 20B0.65 s | InklingNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | GPT-OSS 20B128K | Inkling1M | Inkling lists the larger context window. |
Benchmark Deep Dive
Agentic11 benchmarks
| Benchmark | GPT-OSS 20B | Inkling | Result |
|---|---|---|---|
| AA Agentic IndexSource | 3.1% | 32.3% | Inkling leads |
| APEX-Agents-AASource | 0.7% | — | Not comparable |
| τ²-bench resultsSource | 60.2% | — | Not comparable |
| GDPval-AASource | 3.0% | 36.9% | Inkling leads |
| GDPval-AASource | 559 | 1239 | Inkling leads |
| 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 BriefcaseSource | — | 836 | Not comparable |
| AA Tau3 BankingSource | — | 23.7% | Not comparable |
Coding7 benchmarks
| Benchmark | GPT-OSS 20B | Inkling | Result |
|---|---|---|---|
| React Native EvalsSource | 71% | — | Not comparable |
| AA Coding IndexSource | 20.7% | 52.1% | Inkling leads |
| Terminal-Bench HardSource | 10.6% | — | Not comparable |
| AA-SciCodeSource | 34.4% | 46.1% | Inkling leads |
| SWE-bench VerifiedSource | — | 77.6% | Not comparable |
| SWE-bench ProSource | — | 54.3% | Not comparable |
| Terminal-Bench 2.0Source | — | 63.8% | Not comparable |
Reasoning2 benchmarks
Knowledge10 benchmarks
| Benchmark | GPT-OSS 20B | Inkling | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 14.9% | 40.7% | Inkling leads |
| AA-GPQA DiamondSource | 68.8% | 87.2% | Inkling leads |
| AA-HLESource | 9.8% | 29.7% | Inkling leads |
| AA-Omniscience IndexSource | -63.9% | 2.1% | Inkling leads |
| AA-Omniscience AccuracySource | 15.5% | 40.0% | Inkling leads |
| AA-Omniscience Hallucination RateSource | 94.1% | 63.1% | Inkling leads |
| GPQASource | — | 87.9% | Not comparable |
| GPQA-DSource | — | 87.9% | Not comparable |
| HLESource | — | 46% | Not comparable |
| HLE w/o toolsSource | — | 30% | Not comparable |
Math1 benchmarks
| Benchmark | GPT-OSS 20B | Inkling | Result |
|---|---|---|---|
| AIME26Source | — | 97.1% | Not comparable |
Multimodal5 benchmarks
Frequently Asked Questions (3)
Can I compare GPT-OSS 20B and Inkling 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 GPT-OSS 20B and Inkling today?
GPT-OSS 20B: $0.00 input / $0.00 output per 1M tokens Inkling: $1.87 input / $4.68 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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