Axis Spatial

Claude Code – Claude Opus 5.5 (medium) vs. Codex – GPT-6.1 Sol (medium): geospatial agent comparison

Comparison between Claude Code – Claude Opus 5.5 (medium) and Codex – GPT-6.1 Sol (medium) on the Geospatial Agent Index, each benchmark, cost, time and token use, from the same tasks, agent and limits. Methodology.

Side by side

Claude Code – Claude Opus 5.5 (medium) vs. Codex – GPT-6.1 Sol (medium)
MetricClaude Code – Claude Opus 5.5 (medium)Codex – GPT-6.1 Sol (medium)
Geospatial Agent Index81* (partial: 1.8 of 3 attempts)79* (partial: 2.6 of 3 attempts)
GeoAgentBench score96100
GeoBenchX score6667
Earth-Bench score6251
GeoAnalystBench score100100
Raster and remote sensing score7671
Vector and overlay score8382
Networks and routing score100100
Climate and time series score8575
Spatial statistics and interpolation score6962
Mapping and cartography score7575
Recognising infeasible requests score6069
Cost per task$0.138$0.060
Time per task0.7 min1.4 min
Tokens per attempt103k111k
Turns per attempt4.96.6
Attempts decided461749
Input price per 1M tokens$4.00$2.00
Output price per 1M tokens$20.00$10.00
Context windowNo dataNo data
Image inputNo dataNo data
DeveloperAnthropicOpenAI

Charts

Geospatial Agent Index

Equal-weight average of the evaluation scores, 0 to 100 · Higher is better

  • Partial coverage
Geospatial Agent IndexClaude Code – Claude Opus 5.5 (medium): 81* (partial coverage); Codex – GPT-6.1 Sol (medium): 79* (partial coverage)025507510081*Claude Opus 5.5 (medium)79*GPT-6.1 Sol (medium)
Data table: Geospatial Agent Index
Geospatial Agent Index
ModelCreatorGeospatial Agent IndexRange while attempts are pendingBenchmarks coveredCoverage (attempts)
Claude Code – Claude Opus 5.5 (medium)Anthropic81* (partial: 1.8 of 3 attempts)70 to 814 of 4461 of 870 planned attempts
Codex – GPT-6.1 Sol (medium)OpenAI79* (partial: 2.6 of 3 attempts)No pending judgements; coverage incomplete4 of 4749 of 870 planned attempts (6 excluded)

Cost per task

Average cost per task (USD) · Lower is better

  • Partial coverage
Cost per taskCodex – GPT-6.1 Sol (medium): $0.060 (partial coverage); Claude Code – Claude Opus 5.5 (medium): $0.138 (partial coverage)$0$0.038$0.075$0.113$0.150$0.060GPT-6.1 Sol (medium)$0.138Claude Opus 5.5 (medium)
Data table: Cost per task
Cost per task
ModelCreatorCost per taskCoverage (attempts)
Claude Code – Claude Opus 5.5 (medium)Anthropic$0.138532 of 870 planned attempts
Codex – GPT-6.1 Sol (medium)OpenAI$0.060749 of 870 planned attempts (6 excluded)

Time per task

Average agent wall time per task · Lower is better

  • Partial coverage
Time per taskClaude Code – Claude Opus 5.5 (medium): 0.7 min (partial coverage); Codex – GPT-6.1 Sol (medium): 1.4 min (partial coverage)0m0m1m1m2m0.7 minClaude Opus 5.5 (medium)1.4 minGPT-6.1 Sol (medium)
Data table: Time per task
Time per task
ModelCreatorTime per taskCoverage (attempts)
Claude Code – Claude Opus 5.5 (medium)Anthropic0.7 min532 of 870 planned attempts
Codex – GPT-6.1 Sol (medium)OpenAI1.4 min749 of 870 planned attempts (6 excluded)

Frequently asked questions

Which scores higher on the Geospatial Agent Index, Claude Code – Claude Opus 5.5 (medium) or Codex – GPT-6.1 Sol (medium)?
Claude Code – Claude Opus 5.5 (medium), at 81 against 79 for Codex – GPT-6.1 Sol (medium). Claude Code – Claude Opus 5.5 (medium): 461 of 870 planned attempts. Codex – GPT-6.1 Sol (medium): 749 of 870 planned attempts (6 excluded). Coverage is partial; scores can change as more attempts are decided.
Which is cheaper per task, Claude Code – Claude Opus 5.5 (medium) or Codex – GPT-6.1 Sol (medium)?
Codex – GPT-6.1 Sol (medium), at $0.060 against $0.138 for Claude Code – Claude Opus 5.5 (medium).
Which is faster per task, Claude Code – Claude Opus 5.5 (medium) or Codex – GPT-6.1 Sol (medium)?
Claude Code – Claude Opus 5.5 (medium), at 0.7 min against 1.4 min for Codex – GPT-6.1 Sol (medium).
Which has the larger context window, Claude Code – Claude Opus 5.5 (medium) or Codex – GPT-6.1 Sol (medium)?
Not known yet: Claude Code – Claude Opus 5.5 (medium) has no context window data and Codex – GPT-6.1 Sol (medium) has no context window data.

More: Claude Code – Claude Opus 5.5 (medium) · Codex – GPT-6.1 Sol (medium) · all comparisons