Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
GPT-5.2-Codex is priced at $2.00 input / $8.00 output per 1M tokens, versus $0.50 input / $2.50 output per 1M tokens for Composer 2. GPT-5.2-Codex has the larger context window at 400K, compared with 200K for Composer 2.
Benchmark data for Composer 2 and GPT-5.2-Codex is coming soon on BenchLM.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Benchmark data for this category is coming soon.
Benchmark data for this category is coming soon.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Benchmark data for this category is coming soon.
Benchmark data for this category is coming soon.
Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still 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.
Composer 2: $0.50 input / $2.50 output per 1M tokens GPT-5.2-Codex: $2.00 input / $8.00 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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