gpt-5.6-terra (gpt-5.6-terra) is a chat model from openai with a 1.1M-token context window; capabilities tools, vision, reasoning; input image, pdf, text; output text.
1.1MContext
128KMax output
$2.5$ / 1M in
55Intelligence
137.56tok / s
Pricing
Input
$2.5 / 1M tokens
Output
$15 / 1M tokens
Currency
USD
Note
Indicative US list price — verify with the vendor.
Indicative US list price — a reference only, verify with the vendor. Source: litellm. Last verified 2026-07-22.
Benchmarks
Intelligence index
55
Coding
76.7
Cited from a public third-party leaderboard — a reference, verify at the source. Source: Artificial Analysis. Last verified 2026-07-22.
Performance
Throughput
137.56 tokens/s
Latency (TTFT)
100.446 s
Cited speed metrics — a reference, verify at the source. Source: Artificial Analysis. Last verified 2026-07-22.