modelbenchmark.io

Grok 4.5

xAI · grok-4-5

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xAI's Grok model for chat, coding, agentic tools, and lower hallucination risk

Specification

xai listing

Context
500K
Max output
500K
Released
2026-07-08
Knowledge cutoff
Retires
Open weights
no
Input
text, image, pdf
Output
text

Price

US dollars per million tokens · xai list price

Input
$2.00
Output
$6.00
Cache read
$0.30
Cache write
$2.00

Long-context price tiers

the rate above each context threshold

AbovePrice$/M
200KCache read$0.60
200KInput$4.00
200KOutput$12.00

Quality

7 benchmarks · 2 sources

Composite
85th
percentile of 334 scored models
Rank
50 / 334
±0.08 sd
Evidence
7 × 2
3 or more benchmarks, from 2 or more sources
Effort range
one configuration only
reasoning94th2/4 bench
math78th3/7 bench
knowledge66th1/1 bench
general57th1/1 bench

Every score

one row per source and configuration — nothing averaged away

BenchmarkScoreConfigurationSourceRun
Chess Puzzles36.0 ±4.8highEpoch AI2026-07-08
OTIS Mock AIME 2024-202597.8 ±1.3highEpoch AI2026-07-08
GPQA diamond93.4 ±1.4highEpoch AI2026-07-08
FrontierMath-Tiers-1-3-v257.2 ±2.9highEpoch AI2026-07-09
SimpleQA Verified48.3 ±1.6highEpoch AI2026-08-27
LiveBench77.1default · 23 runsLiveBench2026-06-25
FrontierMath-Tier-4-v224.4 ±6.8highEpoch AI2026-07-09

The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.

Available from 29 hosts

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
xaivendor$2.00$6.00$0.30500K500K
kenarifreefree500K500K
302ai$2.00$6.00500K500K
abacus$2.00$6.00500K33K
aihubmix$2.00$6.00$0.501M1M
cloudflare-ai-gateway$2.00$6.00$0.30500K500K
crossmodel · x-ai$2.00$6.00$0.30$2.00500K500K
daoxe$2.00$6.00$0.50500K500K
edenai$2.00$6.00$0.30500K500K
github-copilot$2.00$6.00$0.50500K128K
impossibl$2.00$6.00$0.30500K500K
kilo · x-ai$2.00$6.00$0.30500K450K
llmgateway$2.00$6.00$0.30500K500K
llmgateway-providers$2.00$6.00$0.30500K500K
merge-gateway$2.00$6.00$0.50500K500K
nano-gpt · x-ai$2.00$6.00$0.50500K450K
ofox · x-ai$2.00$6.00$0.30500K66K
opencode$2.00$6.00$0.30500K500K
opencode-go$2.00$6.00$0.30500K500K
openrouter$2.00$6.00$0.30500K500K
openrouter · x-ai$2.00$6.00$0.30500K450K
opper$2.00$6.00$0.30500K500K
orcarouter · grok$2.00$6.00$0.50500K500K
perplexity$2.00$6.00$0.30
pioneer$2.00$6.00$0.50$2.00500K131K
requesty$2.00$6.00$0.50$2.00500K500K
vercel · spacexai$2.00$6.00$0.30500K500K
zenmux · x-ai$2.00$6.00$0.50500K500K
venice$2.27$6.80$0.34500K32K

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