Model comparison
DeepSeek Coder 2.0 vs GPT-5.1-Codex-Max
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: DeepSeek Coder 2.0 #114 (Estimated); GPT-5.1-Codex-Max #90 (Estimated). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. DeepSeek Coder 2.0 and GPT-5.1-Codex-Max share 0 comparable benchmark results. 0 of 8 categories are comparable. 0 results are unique to DeepSeek Coder 2.0; 13 to GPT-5.1-Codex-Max.
Updated July 21, 2026- Shared results
- 0
- DeepSeek Coder 2.0 only
- 0
- GPT-5.1-Codex-Max only
- 13
- Comparable categories
- 0 / 8
Benchmark data for DeepSeek Coder 2.0 and GPT-5.1-Codex-Max 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 does not have sourced benchmark coverage for DeepSeek Coder 2.0 yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
GPT-5.1-Codex-Max has the larger context window at 400K, compared with 128K for DeepSeek Coder 2.0.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | DeepSeek Coder 2.0 | GPT-5.1-Codex-Max | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | DeepSeek Coder 2.0Not available | GPT-5.1-Codex-Max$1.25 input / $10 output | A complete price comparison is not available. |
| Generation speedtokens per second | DeepSeek Coder 2.0Not available | GPT-5.1-Codex-MaxNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | DeepSeek Coder 2.0Not available | GPT-5.1-Codex-MaxNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | DeepSeek Coder 2.0128K | GPT-5.1-Codex-Max400K | GPT-5.1-Codex-Max lists the larger context window. |
Benchmark Deep Dive
Agentic1 benchmarks
| Benchmark | DeepSeek Coder 2.0 | GPT-5.1-Codex-Max | Result |
|---|---|---|---|
| τ²-bench resultsSource | — | 83% | Not comparable |
Coding2 benchmarks
Reasoning2 benchmarks
Knowledge6 benchmarks
| Benchmark | DeepSeek Coder 2.0 | GPT-5.1-Codex-Max | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | — | 34.7% | Not comparable |
| AA-GPQA DiamondSource | — | 86.0% | Not comparable |
| AA-HLESource | — | 23.4% | Not comparable |
| AA-Omniscience IndexSource | — | -6.0% | Not comparable |
| AA-Omniscience AccuracySource | — | 39.2% | Not comparable |
| AA-Omniscience Hallucination RateSource | — | 74.4% | Not comparable |
Multimodal1 benchmarks
| Benchmark | DeepSeek Coder 2.0 | GPT-5.1-Codex-Max | Result |
|---|---|---|---|
| AA-MMMU-ProSource | — | 72.5% | Not comparable |
Inst. Following1 benchmarks
| Benchmark | DeepSeek Coder 2.0 | GPT-5.1-Codex-Max | Result |
|---|---|---|---|
| AA-IFBenchSource | — | 70.0% | Not comparable |
Frequently Asked Questions (3)
Can I compare DeepSeek Coder 2.0 and GPT-5.1-Codex-Max 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 DeepSeek Coder 2.0 and GPT-5.1-Codex-Max today?
DeepSeek Coder 2.0: Pricing unavailable GPT-5.1-Codex-Max: $1.25 input / $10.00 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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