Benchmark Almanac

Vals Web Search Index

GPT-5.6 Sol 49.1% leads since Jul 2026 Not in model cards

Agents work Finance Agent v2 and Legal Research Bench tasks with one web search tool as their only outside source. It compares native provider search with Exa and Keenable.

Domain tools such as SEC EDGAR and CourtListener are removed. Nine model and tool pairs on 2026-10-21, led by GPT-5.6 Sol with Keenable at 49.08%.

Made by Vals AI Released Jul 2026 Deep research Tasks kept private Last model added Jul 2026 Scores refreshed 2 Nov 2026
Level
Expert Specialists with years of training, often over hours of work
Scored
Graded by a model A language model scores each response, usually against a rubric.
Answers
Agent task Many steps in a terminal, browser, desktop, app, game or robot.
4
Models scored on its own leaderboard

GPT-5.6 Sol leads with 49.1% among models released by Jul 2026

Best score per model from the benchmark's own leaderboard, read on 2 Nov 2026. Where a model ran with several settings or harnesses, we keep its best. Every run is in the next chart.

The newest model with a score here came out in Jul 2026, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

  1. 1 GPT-5.6 Sol 49.1%
  2. 2 Claude Fable 5 48.5%
  3. 3 Gemini 3.5 Flash 41.4%
  4. 4 Grok 4.5 38.8%
#ModelScoreSettingDateSource
1 GPT-5.6 Sol 49.1% Keenable Jul 2026 Official leaderboard
2 Claude Fable 5 48.5% Exa Jun 2026 Official leaderboard
3 Gemini 3.5 Flash 41.4% Exa May 2026 Official leaderboard
4 Grok 4.5 38.8% Exa Jul 2026 Official leaderboard

The best score, 49.1%, costs $8.84 a task

Runs on the cost frontier score higher than any run that's cheaper. Claude Fable 5 comes within 0.6 points of the best for $3.48 a task, 3 times cheaper. The costs are the leaderboard's own estimates, so compare them only within this benchmark.

Google DeepMind Anthropic xAI OpenAI Cost frontier One model at each effort level
0% 10% 20% 30% 40% 50% $0.10 $1.00 $10 $100 Cost per task, log scale GPT-5.6 Sol Claude Fable 5 GPT-5.6 Sol Grok 4.5 0% 10% 20% 30% 40% 50% $0.10 $1.00 $10 $100 Cost per task, log scale GPT-5.6 Sol GPT-5.6 Sol
ModelEffortHarnessScoreCost per taskOutput tokens
GPT-5.6 Sol Keenable 49.1% $8.84
Claude Fable 5 Exa 48.5% $3.48
Claude Fable 5 Native 46.9% $4.37
GPT-5.6 Sol Exa 45.2% $19
GPT-5.6 Sol Native 43.6% $0.95
Gemini 3.5 Flash Exa 41.4% $1.18
Grok 4.5 Exa 38.8% $0.58
Gemini 3.5 Flash Native 37% $0.50
Grok 4.5 Native 35.5% $0.99

2 models have held number one since its release in Jul 2026

Lab claims count from the day the card came out, independent runs from the model’s release.

Anthropic OpenAI
Own leaderboard Not tested since Jul 2026
GPT-5.6 Sol 49.1%

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

On the benchmark’s own leaderboard Best so far
0% 20% 40% 60% 80% 100% 2026 Near the ceiling (85%) GPT-5.6 Sol Gemini 3.5 Flash 0% 20% 40% 60% 80% 100% 2026 Near the ceiling (85%) GPT-5.6 Sol Gemini 3.5 Flash

No lab model card reports it yet

We read the headline results of 479 launch posts from 51 labs, and none of them list this benchmark.

More in Tool use

All 125 in Tool use
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  • MCP Atlas In use Multi-step workflows over real MCP servers. Scores tool-use competency on realistic tasks. Muse Spark 1.1 88.1%
  • BFCL V4 In use Models call functions and tools, including multi-turn agentic tasks with web search and memory. Checked against expected calls and outcomes. Qwen3.7-Max 75%
  • τ³-bench Banking In use Agents act as banking customer-service reps over many turns with a simulated user, following policy. Pass^1 on the final database state. Qwen 3.8 Max 55.1%
  • Claw-Eval In use 300 human-verified agent tasks (service orchestration, multimodal, multi-turn dialogue) audited via traces and snapshots. Rubric scores with Pass^3 consistency. Claude Sonnet 4.6 81.4%
  • DeepSearchQA In use Questions that need multi-step search and synthesis. Final answers graded against references. Kimi K3 95%