MDL
GPT-5.6 Terra (max)
OpenAI
Verified against Artificial Analysis · Jul 13, 2026
Capability
93
percentile index
Price /M
$2.5 / $15
in / out
Context
—
Avg score
68.2
7 benchmarks
AA Intelligence
55.0
index
Speed
166 tok/s
TTFT 1m 38s
Released
Jul 9, 2026
About
GPT-5.6 Terra (max) is a proprietary model in the GPT family from OpenAI. Benchmarked on 7 evals, averaging 68.2.
Benchmark scores · 7
avg 68.2 — higher is betterPerformance & price
Output speed166 tok/s
Latency (TTFT)1m 38s
Price in / out$2.5 / $15 per 1M
Blended price$5.63 / 1M
Coding index76.7
Median across API providers, via Artificial Analysis. Blended = 3:1 input:output. For reasoning models, latency includes thinking time. Methodology →
History
full ledger →AA Long-Context Reasoningfirst seen at 74
3d ago
Terminal-Bench Hardfirst seen at 57.6
3d ago
τ²-benchfirst seen at 86.3
3d ago
IFBenchfirst seen at 71.2
3d ago
SciCodefirst seen at 53.9
3d ago
Humanity's Last Examfirst seen at 41.8
3d ago
Append-only ledger — every observed change to this model's numbers.
API providers
Artificial Analysis$15/M