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Compare / head-to-head

GPT-5.5vsMAI-Thinking-1

GPT-5.5 leads 4 of 4 shared benchmarks. GPT-5.5 has the larger context window (1M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
4 – 0
GPT-5.5 leads
Cheaper per token
list price, input + output
Larger context
GPT-5.5
1M tokens
Provider uptime (30d)
94.2446% · —
OpenAI · Microsoft
GPT-5.5
OpenAI · released 2026-04-23
textvision
Context
1M
Max out
128K
Input /1M
$5
Output /1M
$30
Cached /1M
$0.5
Scores
21 · 10 core
MAI-Thinking-1
Microsoft · released 2026-08-12
text
Context
256K
Max out
64K
Input /1M
Output /1M
Cached /1M
Scores
15 · 7 core
Quality

Benchmark matrix

BenchmarkGPT-5.5MAI-Thinking-1ΔEdge
Reported by both · 4
GPQA Diamond90.7% epoch84.2% +6.5 ptGPT-5.5
AIME 2026100% matharena94.5% +5.5 ptGPT-5.5
SimpleQA Verified63% epoch31% +32 ptGPT-5.5
Terminal-Bench 2.082.7% 46% +36.7 ptGPT-5.5
Only GPT-5.5 reports · 17
LMArena Elo1465.6 not reported
ARC-AGI-1 (Verified)95% not reported
ARC-AGI-2 (Verified)85% not reported
BrowseComp84.4% not reported
FrontierMath Tier 1-351.7% not reported
FrontierMath Tier 435.4% not reported
FrontierMath Tier 4 v2 (Epoch AI run)72.5% epochnot reported
FrontierMath Tiers 1-3 v2 (Epoch AI run)85.3% epochnot reported
GDPval (wins or ties)84.9% not reported
MCP Atlas75.3% not reported
MMMU-Pro (no tools)81.2% not reported
MMMU-Pro (with tools)83.2% not reported
OSWorld-Verified78.7% not reported
OTIS Mock AIME 2024-2025 (Epoch AI run)84.4% epochnot reported
SWE-Bench Pro58.6% not reported
Tau2-bench Telecom98% not reported
Toolathlon55.6% not reported
Only MAI-Thinking-1 reports · 11
SWE-bench Verifiednot reported73.5%
MMLU-Pronot reported85%
AIME 2025not reported97%
AdvancedIFnot reported85%
BFCL v3not reported72%
GraphWalks (<=128K)not reported90%
HMMT February 2026not reported84.9%
IFBenchnot reported69%
LiveCodeBench v6not reported87.7%
MultiChallengenot reported53%
SWE-bench Pronot reported52.8%
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is GPT-5.5 minus MAI-Thinking-1 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecGPT-5.5MAI-Thinking-1Edge
Context window1M tokens256K tokensGPT-5.5
Max output128K tokens64K tokensGPT-5.5
Input price / 1M$5
Output price / 1M$30
Cached input / 1M$0.5
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$35
Modalitiestext · visiontextGPT-5.5
Released2026-04-232026-08-12
Cited benchmark scores2115
Reliability

Provider status

All providers
Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run GPT-5.5 and MAI-Thinking-1 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.