Model profile
OpenAI
New in 2026

OpenAI: GPT-5.6 Terra

OpenAI: GPT-5.6 Terra is a mid-range-priced multimodal generalist from OpenAI with balanced runtime profile, large context posture, and the clearest fit around long-context research / multimodal.

Best for: Long-context research / MultimodalBalanced latencyLarge contextMid-range pricing
Intelligence
41.3

Benchmark blend

Coding
58.1

Dev workflow signal

Context
1050K Tokens

Large

Input Price
$2.00

Mid-range tier

Decision snapshot
60

OpenAI: GPT-5.6 Terra currently reads as a mid-range multimodal option with large context and a balanced runtime profile.

Overall profile
Selective fit
Best for
Long-context research / Multimodal
Latency tier
Balanced
Price tier
Mid-range
Source coverage
OpenRouterArtificial AnalysisVision signal

Decision Strip

Decision rail before the raw tables

Core buy-side signals stay in one pass. The rest of the page expands only after intelligence, speed, context, and price are clear.

Intelligence
41.3
41

General reasoning and benchmark headroom.

Limited
Speed
93 tok/s
62

TTFT 1.88s

Competitive
Context
1050K Tokens
100

How much prompt and task state can stay in view.

Above average
Price
$2.00
62

$12.00 output / 1M

Competitive

Editorial Profile

OpenAI: GPT-5.6 Terra in one narrative

Positioning, tradeoffs, and fit are consolidated into one read instead of repeating the same story across separate cards.

Selective fitCoding score 58Math score N/AVision enabled

GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...

Identity

OpenAI multimodal profile

Positioning

Long-context research / Multimodal with large context and balanced runtime.

Cost posture

Balanced spend profile. Easier to justify in mixed production and exploration workloads.

Strengths
  • Large context headroom supports repo-wide prompts and long research sessions.

  • Vision-capable routing opens up multimodal review and extraction workflows.

Tradeoffs
  • Costs look manageable, but still deserve attention in always-on agents or batch jobs.

  • Latency is balanced rather than ultra-fast, which is fine for most workflows but not the snappiest tier.

Best fit
  • Image-grounded review, multimodal extraction, and UI audit workflows.

  • Long-context summarization, repo analysis, and policy or document review.

Explore Next

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OpenAI

GPT-5.6 Sol (max)

Intelligence
60.9
Context
N/A
Input Price
$5.00
OpenAI

OpenAI: GPT-5.6 Sol

Intelligence
59.0
Context
1050K Tokens
Input Price
$5.00
OpenAI

GPT-5.6 Sol (high)

Intelligence
57.3
Context
N/A
Input Price
$5.00

Benchmarks

Grouped by job-to-be-done

Only benchmark categories with actual signal are shown. Secondary values stay as simple definitions instead of nested micro-cards.

General intelligence

Broad reasoning, knowledge depth, and flagship benchmark posture.

Intelligence Index
41.3
GPQA
84.3%
HLE
29.2%
Coding

Software implementation, debugging quality, and coding benchmark signal.

Coding Index
58.1
SciCode
49.2%
Agent / tool use

Long-horizon execution quality and interactive benchmark evidence.

IFBench
59.7%
TAU2
60.5%
TerminalBench Hard
43.9%
LCR
68.7%

Specs & Pricing

Technical snapshot and cost posture

Specs stay neutral, pricing gets emphasis through values rather than extra containers. Raw provider internals remain in metadata at the end.

Technical snapshot
Context Window
1050K Tokens
Vision
Enabled
Modalities
file, image, text
Tokenizer
GPT
Max Completion
128000
Moderation
Yes
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools
Input Modalities
fileimagetext
Output Modalities
text
Price architecture
Input
per 1M input tokens
$2.00
Output
per 1M output tokens
$12.00
Blended
AA 3:1 mix
$4.50

This model sits in a balanced spend range. It is easier to justify across both production and exploratory workflows.

OR Web Search Price
$0.0100
OR Cache Read
$0.00
OR Cache Write
$0.00

Metadata

Raw source tables at the end

Verification details remain available, but the page no longer forces them ahead of the editorial read.